How can I play .wma and .wmv files in QuickTime?
With the release of Windows™ Media Components for QuickTime™, you can play Windows™ Media audio and video files (WMA, WMV) directly in the QuickTime™ Player and also view Windows Media content on the Internet using a Web browser (eg: Firefox/Safari)
Flip4Mac WMV is comprised of a collection of QuickTime™ components that enables Mac OS X users to play, import and export Windows™ Media files using QuickTime™-based applications. Both the PowerPC and Intel-based Macintosh systems are supported, on Mac OS X version 10.3.9 and QuickTime™ version 6.5 or later.
You can download Flip4Mac WMV free of charge, and if you purchase an upgrade, you can import Windows Media files for editing, create Windows Media files for distribution, and export to other formats. Note that this product does not support files that are protected with Windows Media digital rights management (DRM).
If you like, here’s Microsoft’s own Windows Media Player 9 for Mac OS X. It’s an obsolete app (it was last updated on Nov 8, 2003) but the PowerPC app does play some DRM files and still runs fine in an Intel Mac Leopard. You’ll need Stuffit Expander to decompress the .sitx download.