The 90-Min CD-R only shows as 80-Min CD-R. Whats wrong?
All CD-R’s contain tracks formed from a single spiral, starting at the inner diameter up to the outer diameter, and along which data is recorded using a laser beam. In a standard 80-Min (700 MB) CD-R the distance between successive tracks is 1.5μm. In 90-Min CD-R’s, this distance, called track pitch, has been reduced to 1.33μm, allowing an increase in capacity of approximately 100 MB. 90-Min CD-R’s have a capacity of 800 MB or more, depending on recorder specifications. However, since a 90-Min CD-R’s capacity is beyond the standard CD-R specifications, any software will only show the disc as being 80-Min (before recording) – this is normal! Additionally, in order to be sure that you received the correct 90-Min CD-R media, check the clear hub, center of the disc, and you’ll see “90MIN” is printed there in black text. In order to use 90-Min CD-R’s, compatible software, like Nero Essentials, and a compatible burner are needed. Please check the limited compatibility list, here. To write 90
