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Which DVD Recordable Format Will Win?
kila_m writes: "Their is a format war going on between two recordable formats 'DVD-R' and 'DVD+R.' Both formats do virtually the same thing i.e. are readable in most DVD-ROM drives - but a '-' disk is not recordable in a '+' drive and vice-versa. We have a
review of the Pioneer DVR-A04 - the worlds best-selling DVD writer and based on the '-' format. I would like get an view of what recordable format Slashdot readers prefer or think is going to win."
DVD-R will win, because it has almost 100% compatibility with existing DVD players. DVD+R (from what I understand) is not nearly as compatible. Sort of like CD-R versus CD-RW.
Usually, what happens is either:
You have two less frequent variants:
This leads me to think neither DVD-R nor DVD+R will win, and they will be replaced by yet another standard that will force users to upgrade yet again. The manufacturers are obviously OK with this, as this makes more profits for them, at the expense of slowing the initial acceptance of the technology. Consumers aren't complete idiots either, apart from a fringe of early adopters who are used to being shafted anyways, myself included (I own an Apple iMac with a Pioneer DVD-R drive)
We have a MacG4 with a SuperDrive in it, but now we are looking for a DVD player that will allow us to view a test disc. We use DVD-R General discs because they are cheap and allow us multiple tries without toasting a $25 disc and then find an error. We're thinking of going to DVD-RW because after a several burns, they are cheaper. We are also not opposed to going to +R or +RW if the cost/benefit is there.
In the Aug 2002 issue of DV Magazine, they review the different formats (DVD-R, DVD+RW, DVD-RW but not DVD+R). They look at compatiblity w/players, disc failure rate by disc manufacturer, and other factors. It offers a good read and lots of info if you are interested. They even list players that can accept all of the formats. It has helped us make a decision on a player (Apex makes a nice model).
I think... I mean, do what you want, hey, to each his own, right?
/sec, reading off a RAID array onto tape.
;p
Personally, if I was backing up data, I'd use a tape drive. Especially if we're talking about 500 gigs. Unless I'm thinking of something wrong, recordable DVD is around 5 GB, right? So, you're talking about 100 discs.
That's not exactly chump change.
You can get a Quantum 40/80 DLT drive for nearly exactly $1000. Just check www.pricewatch.com for more details. The 40/80 is compressed/uncompressed, so assuming your data compresses even much worse than average, you can squeeze in 50 GB/tape. So, 10 tapes. And it writes very quickly - I've easily gotten 30 MB (not Mbit)
As for easier to find files/directories, any decent backup progam will just ask you what you want to restore, and then tell you to put in tape #X. DVD-/+R isn't exactly something that won't crap out any more or less than anything else - if anything, they're really prone to scratching. Once the tape is out of the drive, it's a fully encased hockey puck.
I wouldn't play with it, but I mean, you could.
I have an external firewire version of the Pioneer A04 drive, and I'm reasonably satisfied with its reliability and performance.
However, it's pretty difficult finding compatible media that it can use without making a fuss. The blank DVD-R discs sold from the website firewiredirect.com works like a charm and the drive burns them at full speed and the discs can be read in near anything else.
Other brands of DVD-R discs don't work near as well, and sometimes take twice as long to burn. Nero reports zero buffer allocation for seconds at a time when I'm not using the 'good' brand,
and occasionally those discs don't read in any other drive than the A04.
My point, in short, is to be sure you find a supplier of 'good' media for your DVD burner and buy a few samples of different kinds to determine which works best for you. The different brands have different shades of purple colors, the more reddish purple kind works best for my drive.