Reading corrupted ISAM table files

Hi all

One of MySQL servers went down the hard way after a power failure. The
server was running MySQL 3.23.* and after bringing it back up I
realised that one of the tables was corrupted. I tried to run "repair
table" on it, but since it was an ISAM table it didn't work.
After trying some other things I decided to recover the database from a
backup, but I lost 5 records.
I have the old database (the one that crashed) on the side and I need
to recover those 5 records from it. Are there any applications to do
that? Read the .ISD files and recover the content?

Any help would be most welcome.

Best regards,
Rui