[ccp4bb] I compressed my images by ~ a factor of two, and they load and process in mosflm faster

[William G. Scott]

If you have OS X 10.6, this will impress your friends and save you  
some disk space:

% du -h -d 1 mydata
3.5G    mydata
mv mydata mydata.1

sudo ditto --hfsCompression mydata.1  mydata
rm -rf mydata.1

% du -h -d 1 mydata
1.8G    mydata

This does hfs filesystem compression, so the images are still  
recognized by mosflm, et al.  I think they process a bit faster too,  
because half the information is packed into the resource fork.