LazarusNine said:

Elfen, the only reason I got the 160GB drive was because it was cheap and easily available. It was also advertised as 'new' with Amazon Prime shipping. Turns out it was a 2006 drive and didn't work no matter what machine I put it in; my MDD dual boots in both OS X and OS 9 and it wasn't recognised by either one. Nor was it recognised by the OS X 10.4 boot disk, so it was a dud. max1zzz has a 10GB drive with System 7.5 on it; that should solve all of the issues. I may eventually go the CF-IDE route, which I've done in my PowerBook to great effect. However, I'm also curious about the SD-IDE adapters as well, as SD media is so inexpensive. Has anybody had any luck with one of those?

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Interesting. NOS (New Old Stock - stuff they had but did not sell then) equipment, I see. It must have a bad case of stiction from sitting around for years - where all the internal lubrication dries out and solidifies and everything gets stuck.

Though a couple of members of the forum consider KingSpec as a 4-letter curse word, I have had good luck with them myself since I started using them since 2005. The only problem I do have with them is that they only have them in 2.5in format, and to put it in a machines like a P630 or a P6214CD for me, you need to get a 2.5in to 3.5in IDE Adapter.

I believe the company is SwissBit, they have a SSD that does not work with old PowerPC Macs at all, and I'll reason that it won't work with 68K/IDE Macs either. Poor guy tried everything to get it to work but it did not. That information is on this post:

https://68kmla.org/forums/index.php?/topic/23095-ide-ssd-problem-with-pb-1400/https://68kmla.org/forums/index.php?/topic/23095-ide-ssd-problem-with-pb-1400/

I do not know about SD-IDE Converters as I have not tried them, but I'll assume that it is a bit slower than SSD or CF/SSD because the signal has to be converted to/from parallel to serial for it to work and all this conversion is done in the converter's hardware.