The new bootleg CD At The Factory - Warhol Tapes (Nothing Songs Limited NSCD-002) is a major upgrade as compared with the terrrrible At The Andy Warhol Museum bootleg CD -- especially for any VU fan who hadn't access to the audio files that have circulated on the 'net a little while ago. However this CD is not a perfect clone of the original Warhol Museum CD.

This page presents a audio frequency analysis of some of the tracks from the At The Factory - Warhol Tapes, compared with the audio files released in the VU fandom through the 'net. It looks (sounds) like the CD is sourced from those lossy mp4 files - with the exception of Blues Instrumental which was seeded later in lossless flac form.

Walk Alone
m4a file (lossy AAC 128Kbits/s, stereo)
At The Factory CD
Miss Joanie Lee
This track was planned to be included on The Velvet Underground And Nico - Deluxe Edition 2CD set, but for some reason, it had to be dropped out from the final release. It was then available for download as mp3 file. It was the only file from the .m4a series to be AAC encoded as 63Kbits/s mono, probably due to its duration and server file size limitation.
original CD
mp3 file (lossy MP3 64Kbits/s, mono)
m4a file (lossy AAC 63Kbits/s, mono)
At The Factory CD
Blues Instrumental
This track was originally missing from the .m4a series and was later torrented as lossless flac file. This file was probably the source for the track released on At The Factory CD, since both have about the same frequency analysis profile.
flac file (free lossless audio codec, stereo)
At The Factory CD