09-14-2015, 04:45 PM
No, this is not an alignment issue. It's like the drive is powering on and off at random or something. There are tracks on various images that look like a nearly perfect sine wave, with some "splotches". I have never seen this before, and it would be extremely difficult, if not impossible, to generate this with valid magnetic media.
Do you have enough power in the power supply left to power the drive? This certainly looks like an electronics issue. Take a look at your BackToTheFutureII.scp image in the editor/analyzer. Load the image, and click on the Disk Flux button. That will open up a flux display window. Now, advance the tracks and look at the flux data.
There is no difference in the read/writing of any disk format. We are dealing with data at a flux level here.
Do you have enough power in the power supply left to power the drive? This certainly looks like an electronics issue. Take a look at your BackToTheFutureII.scp image in the editor/analyzer. Load the image, and click on the Disk Flux button. That will open up a flux display window. Now, advance the tracks and look at the flux data.
There is no difference in the read/writing of any disk format. We are dealing with data at a flux level here.