I think you missed the point...
- 1.2/1.4 GB CD-R media are not standard CDs. They cannot be read on most if not ALL current CD-ROM drives.
- You cannot burn data (normally) in Mode2 Form2 sectors. As anyone who has tried it will tell you, the normal limits of 650/700MB apply for user data when you burn in Mode2 (i.e., burning in Mode2 for CD-ROMs).
Thus the above speculation.
Regards.