08-17-2015, 01:13 PM
Write pre-comp is done as part of squishing/stretching the track so that it fits based on the speed of the destination drive. Josh needs to use the media integrity test. Failures in the upper tracks are very common with 3.5" disks. I have never seen it with a 5.25" disk. I don't have a 8" drive for testing, but I am guessing that his disks won't pass the media integrity test. This has been the case with a few others trying to duplicate 8" disks.
If this was a write pre-comp problem you would think that since the 8" disk is a lot larger (data goes by the head faster at the outer edges) that there would be problem more so with inner tracks and not the outer tracks.
After reading through the link above, it seems that some type of special interface is required? I thought that 8" drives used standard 34 pin connectors (the ones I have seen on eBay appear to). What is necessary? What is the TG43 thing? I have been trying to find a reasonably priced 8" floppy drive. Any ideas on what I should actually be looking for? What about the adapter for a 34 pin connector?
If this was a write pre-comp problem you would think that since the 8" disk is a lot larger (data goes by the head faster at the outer edges) that there would be problem more so with inner tracks and not the outer tracks.
After reading through the link above, it seems that some type of special interface is required? I thought that 8" drives used standard 34 pin connectors (the ones I have seen on eBay appear to). What is necessary? What is the TG43 thing? I have been trying to find a reasonably priced 8" floppy drive. Any ideas on what I should actually be looking for? What about the adapter for a 34 pin connector?