For coping CD on CD source code must to support a recovery digital audio.

This is seldom to use between old CD-ROM drives, but last models very often have it. Ideally, the program of coping uses a mode disc-at-once for making a copy (CDRWIN).

Some programs are coping CD only on hard drive, then - on CD-R, some programs makes copy possible straight from CD to CD, but only in that case if a drive of source - SCSI CD-ROM (or IDE or SCSI)...