I'd like to make a daily backup of certain directory by adding any new files onto a CD-R. The reason I want it to be a CD-R is that I want these particular backups to survive a remote malicious attack e.g. if an attacker gains root access they could wipe all the drives etc. but they couldn't wipe the CD-R/DVD-R.
I was wondering if it's possible to do this on the server running a recent Linux kernel. Per the wikipedia page, Linux doesn't support UDF VAT. But I'm not sure if this is correct, or if it is, whether there is a decent work-around?