- Make sure you are using the same format on each machine. You could use tie %hash, DB_File, 'file'; which specifies which DB type you want to use explicitly (unless you use AnyDBM_File :). Also, dbmopen has been deprecated since Perl 5.
- Try compressing the data file and then transferring, or, if there's more than one, compress all of them first, and then tar them together.
What time is it? It's Camel Time!