About How to dump Satellaview Memory Packs, it is also possible in "retrofreakdumper".
However, the current version does not support writing to memory packs or dumping BS-X SRAM.
This is no longer a question, so...
If you get a retrofreakdumper environment in the future, please give us a review.
I've put this in my Satellaview dumping page.
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