The Christian Science Monitor has a good article about classical music without DRM.

The article makes the point that digital sales of classical music are pretty high and that classical music fans are willing to spend money on digital music sales for larger files.

Industry figures are hopeful that dropping copy protection – thus allowing for big, clear-sounding and noncompressed audio files – will generate even stronger interest in classical downloads.

and

Online retailers report that classical consumers usually prefer large audio files that eat up hard-drive space and take longer to download to compressed files that are smaller but sound inferior

Here is a clear case where a business model is emerging around selling high quality digital music downloads without DRM.