Skúsiť: "Yes, open your QuickTime preferences (not the iTunes prefs) and select the output to be "wavOut". "
Prípadne pozri sem: support.apple.com
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Windows Hardware
PC with a 1GHz Intel or AMD processor and 512MB of RAM
To play Standard Definition video from the iTunes Store, an Intel Pentium D or faster processor, 512MB of RAM, and a DirectX 9.0-compatible video card is required
To play HD video, an iTunes LP, or iTunes Extras, a 2.0GHz Intel Core 2 Duo or faster processor, 1GB of RAM, and an Intel GMA X3000, ATI Radeon X1300, or NVIDIA GeForce 6150 or better is required
Screen resolution of 1024x768 or greater; 1280x800 or greater is required to play an iTunes LP or iTunes Extras
16-bit sound card and speakers
Broadband Internet connection to use the iTunes Store
iTunes-compatible CD or DVD recorder to create audio CDs, MP3 CDs, or back-up CDs or DVDs
Windows Software
Windows XP Service Pack 2 or later, 32-bit editions of Windows Vista, or 32-bit editions of Windows 7
64-bit editions of Windows Vista or Windows 7 require the iTunes 64-bit installer
200MB of available disk space
Screen reader support requires Window-Eyes 7.2 or later; for information about accessibility in iTunes, visit www.apple.com/accessibility