The copy you previously made wuz just a WORKING copy, pregap is not needed if U run your backup in a drive that can't read pregap.
As 4 ATIP you may have misunderstood: ATIP
IS data, present on the CD (at the very beginning of it in fact). This data consists of media type (tells whether media is a CD-R or CD-RW), maximum allowed write speed, CD size , etc... Of course this data is read-only and cannot be modified (ie burning on a CD-R or CD-RW won't change ATIP, which makes sense...). ATIP is written (probably pressed) on the media during factory manufacturing. Of course, the burner, upon insertion of a CD, "trusts" the content of the ATIP. If an unscrupulous manufacturer makes a 4X CD-R but indicates '8X' and 'CD-RW'-type on its ATIP, the burner will think that it can rewrite on the CD-R, and write at 8X!!! This sort of rip-off is not uncommon when it comes to generic/low-end media of doubtful quality found on the market. It's a big cruel world out there U know...
