Backup using Gzip file type

[Guru]

I may have missed a hack that already does this, but it would be really cool if there was an option in backup to send the file as a compressed (gz) file, rather than a huge ascii file.

It seemed straightforward to change the fwrite calls to gzwrite, but the result was simple a compressed file, rather than something I could unzip on my system. I would guess that there would need to be a file header and other info before writing the zipped data.