I am still working on trying to get my 5.5 30gb ipod to work with an mSATA SSD and Rockbox. I have a Sandisk 128gb drive working with the iTunes iPod OS but not Rockbox. I have also tried a Hynix 120gb mSATA SSD partitioned to 120GB and down to 64GB and 60GB. Each time iTunes will recover it and it works as an iPod, but after installing Rockbox i get ATA errors. (I did have Rockbox working with the original 30gb drive btw).
I'm going a little backwards, but tonight i am going to try a 64gb Sandisk drive and see if Rockbox works.
I have some photos of the install, but i still don't have enough forum rights to post them.
Specifically what I did to partition and format the drives was to pull the drive out of my laptop and insert the mSATA drive to be partitioned/formatted. Then I booted to Ubuntu Linux off of a USB thumb drive. I used Linux DiskTools to partition and format the drive to FAT32. Once that's done install it in the iPod via the mSata to ZIF adapter and boot to disk mode. Then plug it into the computer and let iTunes recover it. (I was hoping that the system would recognize it as a drive before iTune recovery, but this was not the case for me. An error box popped up saying it was an unformatted drive and did i want Windows to format it. Which I did not. So maybe I am not quite formatting it correctly in Linux for this to happen.) Anyway, once iTunes recovers it it's an iPod again and functions.
I don't have any spare 256gb mSATA SSD's to try, but i'm guess Rockbox would not work with them either in my particular 5.5G 30gb iPod. On the list of things to do is to source a 5.5G 80gb mother board and see if things work.
As far as 3.3V mSATA drives. I think they are all 3.3v compatible, but i could be wrong.
"And if I am going to search for a 1,8" 256gb SSD Sata (3,3V) for my Ipod Video, can I just take any of these? Or, are there even within these searching boundaries, still other limitations of SSD's why they won't fit or work?" -
I don't think a 1.8" SATA SSD and adapter will fit.
I'll post an update about the 64gb Sandisk drive once I try it later tonight.