Ho to copy CD's and CD-R/CD-RW's Copying audio CD's: If you want to copy audio CD's, look for 'cdda2wav'. Be sure tu use use at least a cdda2wav-0.95beta or later. Older releases will not read correctly from SCSI-3/mmc compliant drives. Copying data CD's: The best way to copy a data disk is to copy the raw data on the master CD. This may be done by reading the data from the raw device by using 'readcd'. NOTE: All CD-R's written in Track At Once mode end in two unreadable run-out sectors. If the disk has been written with a Yamaha CD-R100 or with a Yamaha CD-R102, there are even more run-out sectors. For this reason, you will not be able to read such a CD correctly with 'dd'. I recommend to write all disks in Disk at Once mode if your drive is supported in DAO mode with cdrecord. In addition, you may wish to add padding (see cdrecord / mkisofs man pages). If you want to copy such a CD directly with cdrecord, you may call: cdrecord -v dev=... -isosize /dev/rdsk/c0t6d0s0 But this may fail if the master gives read errors. To copy such a CD to a file you may use the program 'readcd' from this package Call 'readcd [target] [lun] [scsibusno]' and select function 11. Or call readcd -help to get alternate usage. To prevent readcd from reading the run-out sectors, reduce the number of sectors to copy by 2. Recent readcd versions may be called: readcd dev=b,t,l f=outfile To reduce the numbers of sectors to copy you may use the sectors= option. If the master disk is made of several partitions (like a Solaris boot CD), the best way to copy a CD is to use the program 'readcd'. It ignores the partition info and does raw SCSI reads. If you like to copy audio CD's in a way that preserves as much accuracy as possible, use: cdda2wav -vall -D... -B cdrecord -v dev=... -dao -useinfo *.wav This will preserve pre-gap sizes, indices ...