Try with overclocking. That helped me with a few similar crashes in Panzer Dragoon Saga.
Btw, I finished PDS using this. Thanks to all contributing to this :)
Yes, I played through the whole CD1, saved at its end and loaded the save with CD2. No problems as long as CD1 and 2 share the same ID. After the Guardian boss Fight it crashes unfortunately.
How far did you test Panzer Dragoon Saga? I get a reproducible crash on CD2 reight after the Guardian boss fight.
I used Guardian Force as base with the European version of PDS and the default config.