PCMCIA Flash cards, 8-16MB

I'm looking for PCMCIA Flash cards for my Alesis QSR synthesizer. They need to be at least 8MB, bigger also works but the extra capacity will just be wasted. Unfortunately these synthesizers are a bit picky in terms of card compatibility (see https://benweaver.info/alesis/) - I have tried several cards that were simply not recognized at all, other cards were recognized but resulted in some data not being read correctly. Just offer me anything that might be a fit and we'll figure out if it's worth a try.