Customize Your Upgrade to iTunes Plus
— ♣When Apple announced that their iTunes Store would be moving to DRM-free, 256KBPS tracks, they also began offering the option to upgrade your existing library. Unfortunately, you had to upgrade everything you’d ever bought, all at once. This could prove to be a very expensive proposition for those who had purchased large amounts of material from the popular music download service.
Now, Apple is offering customers the ability to upgrade specific tracks, albums, and music videos to the new format on a item-by-item basis. This should ease the pain of upgrading your library.
The process is, of course, accessible to VoiceOver users.