If you're rocking the Mac mini -- or any other Mac, for that matter --as a media center, then chances are pretty good that you've had some tough times following the upgrade to Snow Leopard. Anticipating such problems, some of us held off upgrading to Mac OS X 10.6. Now the wait is over.

Shortly after Elan discussed the details of a workaround for Plex, a new release has been let loose on the web. Plex 0.8.3 was announced earlier this week with improved Snow Leopard compatibility as well as several other fixes and new features. For users of Apple's latest OS, the biggest new feature is probably the integration of the Candelair driver which returns Plex to the days of Apple Remote compatibility.

Other notable improvements and new features include:

• Fixed an issue with MKV playback over the network
• A problem with the media server crashing has been fixed
• Video playlists work again
• A new feature where downmixing 5.1 surround audio to 2.0 stereo audio has multiple dynamic range compression options. In other words, surround audio will not be as "quiet" when played through headphones.
• New handling of quitting/suspending commands that includes a new scheduling feature.

The new release of Plex means I can finally stop holding my breath and upgrade my Mac mini to Snow Leopard. It is available now, for free (!!!) right here. Anybody else ready to upgrade to SL now that the Plex release is out? Once my mini is upgraded, rest assured that Plex will be the first thing I install.

[via Macworld]

Is it a forgotten project? A fit of open-source pique? Or is it just that everyone got really busy on other stuff? Looks like Apple has just shut down the ZFS project for Mac OS X. The site for the project on Mac OS Forge reads:

ZFS Project Shutdown
2009-10-23

The ZFS project has been discontinued. The mailing list and repository will also be removed shortly.

It's hinted that this was caused by legal issues surrounding the merger of Sun Microsystems and Oracle, which caused Apple to back away from the next-generation file system technology. After many rumors, including ZFS support that was going to be added in Snow Leopard Server, but that ended up being removed in the final version, it now seems like the saga of ZFS on Mac OS X is ending with a whimper.

[via Daring Fireball]

Anil Dash has described how to run Windows 7 on a Mac running OS 10.6 -- as a virtual machine -- for free (after you buy Windows 7, of course). It's not very tricky and, according to Anil, works well. Start by installing Windows 7 in Boot Camp and wait while it grabs the necessary drivers (the duration of this process will vary).

Next, eject the Boot Camp disk and enter a few simple Terminal commands. You'll also need VirtualBox, which is free and open source virtualization software. Once you're done in Terminal, launch VirtualBox and browse to the file you made with Terminal. Read Anil's article for the details.

As today is Windows 7 launch day, we're interested in hearing from anyone who has installed it on their Mac, either via Boot Camp or virtualization.

For more, read Christina's post on installing Windows 7 on a Mac (at Download Squad), or Steve's take here. You can get your absolute fill of Win7 coverage all day today at DLS.

Welcome back to Ask TUAW, our weekly troubleshooting Q&A column. This week we've got questions about Photoshop alternatives, Windows and Mac file sharing, graphics problems in Snow Leopard and quickly switching between applications, and more.

As always, your suggestions and questions are welcome. Questions for next week should be left in the comments. When asking a question please include which machine you're running and which version of Mac OS X (we'll assume you're running Snow Leopard on an Intel Mac if you don't specify). And now, on to the questions.

Matt asks:

I don't have the money for something like Adobe Photoshop. What's the best, cheaper alternative?

For my money, the best Photoshop alternative at the moment, and one I use every day, is Pixelmator. It has many of the same features as Photoshop like layers, masks, level and curve adjustments and a whole lot more. Plus, it's a relatively simple program to use and is written to take advantage of your Mac's GPU when doing image processing.

It also supports most image file formats including Photoshop PSD files and has many useful Automator actions built in. Actually, because Pixelmator is such a good app and takes care of most of my needs, it's pretty rare that I ever open Photoshop anymore. Sadly, Pixelmator is not free, but at US$59.00, it's a heck of a lot cheaper than Photoshop.

Some other alternatives include the open source GIMP and its more Photoshop-like cousin GIMPShop. You can also check out Acorn, or if you need very minimal tools like crop and resize, ImageWell. Of course, Apple's built-in Preview.app can handle many of these low-end tasks as well.

VideoLAN's popular cross-platform open source media player VLC 1.0.2 is now available with an important security update. The rest of the release notes are rather terse and nerdy:

"BEWARE: this release is not compatible with Tiger. This version introduces many fixes, notably for SSA decoding, v4l2, MacOS interface, ogg/theora, x264 modules and security issues. It also introduces the port to 64bits for Mac OS platform and 2 new languages (Kazakh and Croatian)."

I'm not sure what "Mac OS interface" fixes were included (the app looks the same to me, but perhaps it refers to minor fixes rather than major changes), but two things probably jumped out to you: the first is that the app is not compatible with Tiger, although this is not new with 1.0.2 (downloads for older versions of Mac OS X are still available).

The second is the "big" news: VLC is now 64-bit. Again, this is not a change that end-users are likely to notice, but if you have been following news about Snow Leopard you know that 64-bit has gotten a lot of emphasis, and it's great to see VLC is keeping up.

Someone recently asked why I would use VLC on the Mac when I had QuickTime Player or Apple's built-in DVD app. My answer was two-fold and simple: I use it because when I want to watch DVDs I can press command+D (to open the DVD), press enter, and VLC automatically takes me to the main menu of the DVD, skipping all the ads and previews and other nonsense that the movie companies try to force you to watch every single time you put in a DVD. The other big reason I use VLC is because is has an option (under the "Video" menu item) called "Float on Top" which, as you would expect, keeps the video window above other windows. I was disappointed to see that even QuickTime Player X does not offer a similar feature.

VLC may not be beautiful to look at, and its advanced preferences are enough to make a normal person go cross-eyed with confusion, but it is a video playback workhorse, especially when paired with the US$3 iPhone remote control app (iTunes link).

Sorting through the tips inbox, we encountered a new product that is coming out for the iPhone next week. It's not an app, game, or anything we "normal folk" would use but it looks to be a great open source, web-based development platform for iPhone.

WidgetPad allows web developers to create iPhone applications using only their knowledge in web-based code. The software allows you to write your applications using web-based code and then transfer them to standalone apps for the iPhone or iPod touch.

We're being told that the iPhone is only the beginning; the software will eventually translate to other smart phone platforms so that developers can quickly and easily export their applications for other app stores without re-writing the code. Here are some quick highlights:

• Create web-based applications that utilize each phone's hardware capabilities.
• The environment includes and helps you learn HTML 5.
• It's all open source. If you want another feature, you can help the development team create it.
• Each application is written within the software and can be publish directly to the iPhone (more platforms soon).
• Source code editing for Javascript, HTML 5 and CSS (with syntax highlighting).
• No additional software - all of the work is done directly from your browser.

I am not a developer, but I do some web design on occasion. I find it very interesting that I could create an iPhone application without learning Cocoa Touch and the Objective C language. I imagine that porting these apps to Palm's WebOS would be quite simple since it's already running a form of web-based code for its applications. If this software works well, we could not only see an increase in the already thriving iPhone developer world, but the smart phone app world as a whole. If you end up taking the leap, let us know what you find. We'll keep you updated and let you know our results in a later post.

I'm not a fan of setting up Virtual Private Networks (VPNs). In fact, I've had so many issues with VPNs in the past that I now subcontract that work to a fellow geek who seems to have a knack for understanding the various settings. That's why I have been following Hamachi with great interest for the past several years.

Hamachi is described in the Wikipedia as "a zero-configuration virtual private network (VPN) shareware application capable of establishing direct links between computers that are behind NAT firewalls without requiring reconfiguration (in most cases); in other words, it establishes a connection over the Internet that very closely emulates the connection that would exist if the computers were connected over a local area network."

LogMeIn, a commercial firm that produces both free and subscription services for controlling other machines, sent out an email to customers on Thursday touting Hamachi², their implementation of Hamachi. LogMeIn has been deeply involved in Hamachi development, so the announcement was expected. What I didn't expect to see was that they've left both Mac and Linux users out in the cold.

I quickly jotted off an email to LogMeIn and received this response: "Mac is not currently supported, we do plan on adding support for other platforms but do not have an ETA at this time." For quite a while, there was an open source project called "Hamachi X," but it's no longer supported. Another developer took on the task of creating a Mac OS X and Linux Hamachi client called Hamachi Sidekick, which is a GUI to a command-line Hamachi tool. Unfortunately, LogMeIn also pulled the Mac OS X command-line interface (CLI) version of Hamachi, so there's no way to even try the CLI tool or Hamachi Sidekick now.

LogMeIn may tout Hamachi² as "a VPN that just works," but for Mac users, it just doesn't work.

I received a private tweet from a reader the other day, who asked a question about a previous post in which I had installed Windows 7 RC1 on a Mac using Sun's VirtualBox. The tweet asked, "You did a post about installing Win 7 on the Mac for free. How about Linux?," which set up a challenge. Not only can you install Linux distributions on a Mac using VirtualBox, but it's extremely easy to do.

Why would you want to run Linux on a Mac? There are probably a few good reasons -- learning about a different OS, using software that's not available on the Mac platform, or for a Linux class in school. While you can create a bootable partition on your Mac and boot Linux from it, I prefer to do things the lazy way. In this short how-to post, I'll demonstrate how I installed Ubuntu Linux 9.04, also known as "Jaunty Jackalope."

One of the largest personal iTunes libraries I've ever seen belongs to a client of mine. This client, who was a DJ in the 50's and 60's, has a huge collection of vinyl albums and singles that he painstakingly digitized, cleaned up, and catalogued in iTunes. Needless to say, opening iTunes on his Mac Pro is an exercise in patience.

Thinking about his music storage needs, and the huge amount of digital photos and video that my wife are accumulating, got me musing about other ways to do mass storage inexpensively. At this point, I'm probably OK with a DroboPro, but what if I needed petabytes (1 petabyte = 1,024 terabytes = 1,048,576 gigabytes) of storage? Most solutions at this point in time are quite expensive.

As of 6 AM PDT this morning, off-site backup vendor BackBlaze has put their solution to mass storage needs, the BackBlaze Storage Pod, out to the world as an open source project. Their solution is a relatively inexpensive box (US$7,867 for 67 TB of storage) made up of off-the-shelf components that can be reproduced and/or improved upon by others who also need huge amounts of cheap storage. See those red boxes in the picture to the right? Each one of those contains 67 TB of RAID 6 storage in a 4U box. For a petabyte of storage, you're going to need to spend about $117,000 on about fifteen of the boxes.

Update: SweetFM has now been moved to a project on GitHub

SweetFM, a totally awesome Mac client for the Last.fm streaming music & recommendations service, is now an open source project. This means that anyone can download it for free and you no longer have to pay $29.00 for a license key to use the application. Our own Christina Warren reviewed SweetFM last month, and she was pleased with its slick design and many great features, including Apple Remote and Apple Keyboard media key compatibility, extensive integration with iTunes, and deep support for your Last.fm stations.

Since her review, SweetFM has also been updated, adding an equalizer for Last.fm streams and bug fixes.

If you're interested in SweetFM, check out the Chocomoko website, visit the project page on Google Code, or read Christina's earlier review. SweetFM is a Universal Binary (compatible with Intel and PowerPC Macs) and requires Mac OS X 10.5 or later.

When traveling, I am always amused to see other iTunes libraries appear in my iTunes as we all glom on to the same wireless network. "Oh, hello there, Sandy's MacBook, I didn't realize you were such a Hootie and the Blowfish fan." If you're constantly asking your friends about their iTunes libraries (excessively, perhaps?) you might want to check out Mashduo -- an OS X application that allows you to drag and drop library files for comparison. Finally you'll know who has the larger ABBA collection, or who never quite understood The Dead Milkmen (hint: they only song they own is "Bitchin' Camaro" or "Punk Rock GIrl").

As you can see in the video, Mashduo is pretty fast for what it does: collating and analyzing all that iTunes data. I cut about 22 seconds out as Mashduo did its thing to over 14,000 songs in those libraries. So yeah, it's fast. It is also a limited use piece of software, yes, but it is open source, so you can monkey around with it to your heart's content. First feature request: it would be lovely to have it work with those mystery iTunes shares over the network.

For a while now I've been using MediaLink ($20) from Nullsoft to stream video from my Mac to my PS3, but last evening I discovered that I had some MKV (Matroska container) files that I wanted to stream but which the PS3 doesn't natively support. Naturally I assumed I'd have to convert the files and Googling around did turn up a method for doing so using QuickTime Pro. Even beyond the need for QuickTime Pro, however, it is also a somewhat time-consuming process. That's when I ran across a brilliant piece of open-source software called PS3 Media Server.

PS3 Media Server is a cross-platform Java application (and, unfortunately, it looks like it), which not only streams video from your Mac to your PS3, but also utilizes the open source Mplayer/FFmpeg backend packages to transcode / remux media in real time. What this means is nothing short of remarkable: you no longer have to convert supported media (MKV/FLV/OGM/AVI) ahead of time for playback on the PS3. I was able to stream a 720p MKV file without a hiccup (though I do have both my Mac and PS3 connected to the router via ethernet cable). Being impressed at the performance I decided to try it with a 1080p movie trailer I had downloaded from Apple and after a brief blip about 10 seconds in it streamed beautifully as well. (Note that both of these files were already H.264, which the PS3 does natively support, so I believe the PS3 Media server was only remuxing and not actually transcoding.)

PS3 Media Server is a free download over at Google Code (donations requested). There's also a Mac-specific beta (pictured above) that offers more features (including iTunes and iPhoto library support). Overall I'm shocked by how well it has worked with what I've thrown its way (which is admittedly limited). Highly recommended.

Gizmodo recently posted this video, which is beautiful to any PSX-era gamers: it's Final Fantasy VII running right on the iPhone, like buttah thanks to the 3GS hardware. How is this possible? Through the magic of emulation -- ever since computers got powerful enough to pretend to be other computers, people have resurrected old consoles and hardware by writing code that makes old games and software think its right at home in the computer it belongs in (an old NES system, a Genesis, or even a Playstation or Nintendo 64). As a result, by loading up ROMs into an emulator program, you can play old games you can't find (at least working) in the store any more.

But the problem, as it usually does, lies in the legality. Even though those games are hard to find, companies still often own the copyrights on them (Square, for example, just released FFVII in an official emulator on the PSP, and they wouldn't be very happy with someone else releasing it on the iPhone). So while it's very easy for someone to write software that pretends to be an old NES (and there are lots of jailbroken apps around that will do just that), it's not easy to get all the rights and legal sign-offs to make it legit. Legit enough for Apple to keep it in the App Store, anyway. And while the video Gizmodo shows is awesome, and is possible on a jailbroken phone, it's not likely we'll ever see that app make it through Apple's approval. Not to mention that even when people jump through the legal hoops, Apple isn't happy with running other systems' code on their hardware anyway. Lame.

That doesn't mean that the old games are gone forever -- there are certainly emulators of open-sourced or expired hardware on the App Store (here's one for Chip-8), and obviously there's a commercial reason for companies who do own the copyrights on popular games to bring them into the App Store officially. But as great as it would be to have a GBA emulator that automatically played any GBA game ROMs you loaded into it, that kind of stuff will have to stay in the jailbreak underground for now.

Sometimes you have to use Windows. Supporting clients in multiple-OS environments makes this a necessity for some Mac users, while others want to run applications that are available in Windows only. You can get a preview of the latest flavor of Windows, Windows 7, by running Release Candidate 1 of the new OS either in a virtual environment such as VMWare Fusion, Parallels, or VirtualBox, or in Apple's own Boot Camp. Christina did a thorough rundown of the options for running Win 7 on Mac back in January.

Of course, you may not own Fusion or Parallels, and perhaps you don't want to have to boot into Windows separately. In that case, you can download a copy of Sun's VirtualBox application (it's free) and then download a copy of Windows 7 RC1 from the Microsoft website (it's free, too!). Follow these detailed instructions or watch the video, and you'll have a free way to test Windows 7 until at least June 1, 2010. Windows 7 will shut down after every two hours of use after March 1, 2010, which is Microsoft's subtle way of telling you to buy the OS or update to a later build.

If you're a VMWare Fusion user, the VMWare team has instructions and a video available here. Want to try out Win7 RC1 with Boot Camp? There are instructions here. For Parallels 4 users, I was unable to find a good set of instructions, so if any TUAW readers can provide me with a link, I'll update this post.

How is Windows 7 RC1 as an operating system? It's faster than Windows Vista on my 3 year old iMac, and some features look surprisingly Mac-like. I'll leave it to you as an exercise to see how much you like or dislike it.