I just burned my backup using the above method and everything seems fine. I was worrying about read compatibility and I did use a cheap disc but both my burner and DVD-ROM as well as the standalone player recognize the backup and seem able to play it just fine. It was rather fast and simple to do it, too.
Is there anything I should know about disc durability ? Probably no one knows for sure since this stuff hasn't been around for that long but are there any considerations you think are realistically important when thinking about long term backups ? I'd hate having my backup discs deteriorate and become useless in a few years time.
And yes, I am reading the media forum as I type this.