Links are still alive and well. I'll post some links at the bottom.Yes, you can open the dic.dz files (it's basically a tar archive with some additional stuff) with dictzip program or rename .dz to .gz and use an unzip program.Use the latest simplified bedic format (created by rafm), not the original (although it is still supported).Look at these links for more info:Snip...
The .dz files are modified gzip files; gzip specifies how to add headers so you can have a custom archive with uncompressed meta data. If you do a gzip -d you'll probably extract the main archive but then that will still be bedic "raw" format not the simple format.Don't forget to see http://www.lyndonhill.com/Projects/bedic-tips.html if you want to write your own dictionary. What languages are you making ?