How to access files stored on tape drive?

Helping a friend with accessing an old backup file (circa 2000) of some ProTools sessions provided by a recording studio on DAT-style data tapes. He has the tapes, and a Seagate STD 124000N SCSI tape drive which accepts them.

After sorting out a SCSI-USB converter, and connecting it via a Windows system (as the Adaptec SCSI-USB converter doesn't have a driver for OS X), we finally got it recognized as a device, and got drivers installed. But I can see no way to mount the tape as a drive, or see/access the contents thereof.

What kind of Windows software (that is still available somewhere) will be able to see the drive and copy files from it?

So I used to use Novastor's software for this very reason, as you could read the first xxx blocks of the tape where the software identification is written. It identifies the make, model, and usually the revision of the software that wrote the data to tape originally.

If its a major brand of software (i.e. Backup Exec, Comvault, etc.), most have a 30-60 trial you can download and install to restore the data to a drive/share.

Good luck!