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Jun 29, 2020 at 22:16 comment added cup I find that older PCs (i.e. those produced before the 32X CDs came along) are unable to read disks written at top speed but they can read disks recorded at the lowest possible speed. It doesn't make sense but if someone told me the ISO was bad and I told them to record at a lower speed, it always worked.
Jun 29, 2020 at 21:54 comment added Raffzahn Jup, all true. My point is to look first at the blanks used, as they do differ in dye used, which reflect at different wavelength than 'real' CDs. So it's less about the 'burning' and the writing drive, but the materials used and their workingsin conjunction with optics, laser and detector of the CDTV drive.
Jun 29, 2020 at 21:31 comment added Michael Graf @Raffzahn "All drives should create appropriate 'burning' at all speeds available with disks qualified for that drive (laser/focus) and speed." -- Indeed. But when in doubt, marketing will always choose the higher speed factor, even if the result is marginal, that's why I slow it down a bit when I run into problems. In addition to the dye, some discs have a more reflective (probably thicker) metallic layer, which may also help.
Jun 29, 2020 at 19:42 comment added Raffzahn Good answer. All drives should create appropriate 'burning' at all speeds available with disks qualified for that drive (laser/focus) and speed. There's more than just the energy per time issue. Also, even when burned at correct parameters, the resulting disk may still fail for the CDTV drive - mostly due an unsuitable dye. Before playing with different speeds when a disk produces errors, I'd rather go and try different blanks to see which gets read best by the drive.
Jun 29, 2020 at 19:39 vote accept Bartek Malysz
Jun 29, 2020 at 18:32 history answered Michael Graf CC BY-SA 4.0