Released After a Three-and-a-Half-Year Court Fight
Complete Contents of All 23 CDs
Twenty-one of the CDs are audio. The Memory Hole ripped the audio to MP3 files and posted them at the Internet Archive. Each one lasts 44 to 47 minutes.
Internet Archive page containing all these audio files in various formats
Disc 23 contains PDF files of 503 oral histories. The NYT has posted all of them here.