Originally Posted by
mville
As the restore hasn't fixed the issue, I suspect bad blocks on the HDD and SSD.
iTunes Restore does not format the entire drive. If it were possible to do a full format of the disks and to mark any bad blocks, as you would with a PC drive, this might well fix the issue. I'm not sure it is (easily) possible though.
IMO, this issue has been poorly supported by Apple and why I believe they no longer manufacture/support iPods with HDDs. It is too much of a headache for them, so they just wash their hands of the problem.
Personally, I'll just continue with my iPod and wait for a portable media player that supports micro SD cards larger than 128MB. Then, I'll be able to dump the iPod/iTunes/Apple once and for all. Believe me, it will be a blessed relief.