Gdash

[altermaven]

This might be due to the reason that these cavesets may have used some unknown or benign packer that the converter cannot recognise, due to the data not exactly having parity with the tool (this could be any package that had been created before a standardized means was made available, most likely due to Assembly tinkering). It could also conflict based on the type of engine being unknown.

[CWS]

The remaining question is: how to extract the caves from that caves?

[altermaven]

I do not really know for sure. I was just making an analysis based on knowns vs. unknowns. I haven't really found the answer myself.

[BadDog73]

Does anyone know the difference between "Boulder_Dash_2_Atari.bd" and "Boulder_Dash_2_Atari.gds"?

[altermaven]

.bd is a BDCFF file, which is plaintext, whereas .gds is a compressed GDash caveset. The only difference is how GDash interprets these, and both are the same.