Just to clarify, alot of producers/engineers prefer tape to digital for 'warmth'.? I bet alot of the tracks were recorded onto tape and then transfered onto a digital medium.
i doubt it... i own a recording studio myself. and while the 'warmth' factor was an issue 3 years ago... now a days it makes no difference. the loss of sound from tape to digital is substantial.
I think it would be EXTREMELY unlikely that axl would be using any tape on CD