ez csak technet előfizetőknek való
de kikerült végre főoldalra is:
http://www.microsoft.com/windows/windows-7/beta-download.aspx
de csak ie-ben megy, mert vmi köcsög ie addon tölti a cuccot :)
de egyébként ez fincsi:
When MP3 files are added (either manually or automatically) to either the Windows Media Player or the Windows Media Center library, or if the file metadata is edited with Windows Explorer, several seconds of audio data may be permanently removed from the start of the file. This issue occurs when files contain thumbnails or other metadata of significant size before importing or editing them.