Dumping a CD is (relatively) straightforward. Dumping a SNES cartridge is a nightmare.
The Satellaview was a Japanese satellite modem peripheral. Games were downloaded to flash memory cartridges (BS-X carts). Redumping these requires special care: redump snes
The Redump SNES project relies on contributions from the community, including: Dumping a CD is (relatively) straightforward
The SNES cartridge header contains vital metadata. The dumper must verify this data post-extraction: redump snes