@amigadave
EIDE. This is on my MicroA1 running OS4, so hopefully I'm not leading anyone down the garden path. For CD-RW, I found that I had the best results with "High Speed" CD-RW discs. I also use "High Speed" CD-R discs, but have not tried as wide a variety of CD-R discs, so lower speed discs may be just fine.
Even though it is a 68K program MakeCD works beautifully on my machine on my OS4 workbench.
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redfox