[CassandraC]

Thanks there,

The problem is that I'm not sure how to read these file names.

For instance LG_LWL_LS101V12_CM60026_AK1025_V9.1.52_20070828.ra r

Ok the CM60026 matches.
AK1025 matches.
V9.1.52 was the version on my machine before I tinkered.

The other part of these files bear no resemblance to any numbers on my machine though.

What else should I be looking at?

Thanks.