At 01:24 PM 4/16/2009, you wrote:
I thought it should be possible to duplicate my sample
CD-ROMs in
Roland S-760 format using the Apple OSX disk utility. But when I try
to create a disk image file from any of my CD-ROMs the disk utility
says "read/write error" after reading the CD-ROM. It does work with a
CD-ROM in Akai S-1000 format though.
Disk Utility can be touchy. it's not the fault that they are "Roland"
or "Akai"; it's just the condition of the CD's or their manufacture.
The big problem is that Disk Utility quits at the smallest sign of
trouble, and it does not preserve the amount of the disk it has read
already, nor does it continue on.
There's other programs that are as touchy, so what I did in
Translator Windows is make a Create Virtual Drive option that if it
hit a sector batch that caused problems, it would try to read every
sector in that batch, and skip the ones that failed. It would inform
you but it would go on, so at least you could make a total Virtual
Drive that perhaps would have some bad data in it's sectors.
That same code is being prepared for Translator Mac inclusion at the moment.
Roland CD's are pretty safe, because ALL the headers are at the start
of the disk. If there are bad sectors, that just means some audio
will be affected.
I remember I could duplicate those CD-ROMs back in the
OS 9 days,
using Adaptec Toast. But my OS9 computer and its CD burner quit
working a long time ago.
Toast was a bit better about it. I got frustrated by all the
incomplete methods the others employed, so my version in Translator
really is industrial strength. I'm a big fan of images (I call them
Virtual Drives) so after having a batch of what I saw as perfectly
good CD's not be able to be imaged I came up with a better solution.
Any other possibilities, preferrably using an Apple
computer?
Translator Mac, when it's ready, or if you have access to a Windows
computer, use Translator Windows. This capacibility is on the Free
versions, because we know how touchy the image-reading utilities are.
Garth Hjelte
Sampler User