Geoffrey S. Mendelson wrote: > nospam wrote: >> verbatim data life plus are not outsourced and should be the same >> everywhere. the cheapo verbatims can vary. > > Thanks, I never knew that. > > What I have seen is that the disks seem to be blue or yellow. I assume > that is the color of the dye that gets burned. Yellow (also gold/silver) > disks work better for me in older drives.
You're right. - bluish surfaced CDs donot work very well on older burners like the Yamaha, Matshita, Panasonic and Sony, which were the brands mostly used those days.
this is the only time, I've lost some burnings, when I bought a - luckily - small case with blue surfaced disks and put them into my Panasonic CRW-7502 with a modified firmware for music burning. - ALL of them went wrong and couldn't be verified afterwards. After that I switched to an Italian brand called VivoStar for databurning and TDK for music and had no problems with that drive from that on...
>> nonsense. many scsi burners have buffer underrun protection (both of >> mine did) and they can burn at any speed provided the host computer can >> source data that fast. > > The original question was about a Yamaha 16x read, 4x burn unit. I have > two of them and neither of them has buffer underrun protection. There was > a firmware upgrade for it, I applied it to one of them and it did not > seem to fix or break anything. :-)
Yep! Neither the Yamaha, Matshita, sony or Papasonic SCSI drives have buffer underrun with any kind of burn-proof. - This means that 'high density' files with lots of data will have to be burned at very low speeds of a max. of 4x.
But of cfourse all drives have a buffer itself..-) - else you won't be able to burn with a higher speed than about 1,5x to a max. of 4x.:-)
>> also, most discs these days are optimized for the higher burn speeds >> and burning too slow is actually worse than burning closer to their >> rated speed. > > The TEAC blanks I use are marked 12x-52x, but they burn fine at 1x.
Of course it'll burn fine at 1z.:-) - The 'rating' on a media is meant as a 'thumb rule' for what and which types and speeds avaliable on a specific drive.
> I burn relatively a lot (average 1 set a month) CD's for OLD Macs (680x0 series > and pre-G3 PPC) and get good results burning them no faster the > read speed of the target drive.
Good suggestion... When i burn disks that should have a high precision level, I only burn at a speed of 4x - i.e. music CDs and copies of old bootable system disks, so i can spare my originals. Normal data Cds I burn of speeds up to a max. of 32x...
> For some strange reason, CD's burned on PC's using DVD burners work fine > when they are burned at any speed, athough I try to use 8x, which for > most of them is the minimum.
That's probably because the laser in a DVD drive has to be quite a lot more precise to be able to burn all the amount of data on a DVD (movie + sound) to be able to be read in a drive
Cheers, Erik richard
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