ImgBurn Verifying?

[mrjust]

Is it necessary to verify your (video_ts) dvd's when burning?

[MOVIEGEEK]

Some say yes but I don't use it, I figure as long as the DVD/BD works in my player it's fine.

[hech54]

I never do.

[mrjust]

Thanks guys know that I know I save 10 min of my time! Thanks again

[johns0]

I always verify my discs,once in a while i will get a bad disc so its much easier to reburn right away than later.

[DB83]

Thanks guys know that I know I save 10 min of my time! Thanks again

If that 10 minutes is so important then fine. But later, when you try to play that disk and find it does not play through and neither is it a simple matter to make another one, you may wish that you indeed spent those ten minutes a little better.

Like most things it is a personal choice. I choose to verify all my burns. And occassionally a disk does not verify which, for me, makes the use of that time quite worthwhile.

[guns1inger]

I use Nero DiscSpeed or DVDInfo Pro to verify burns, rather than Imgburn's built in verify. I have had a couple of drives that would always fail Imgburn's verify, even on something as simple as a text file, yet the same disc would always pass muster using other tools, and always played fine. It seems to be drive dependent, but that was enough to put me off using. I won't burn with anything but Imgburn, but I won't let it verify it's own work.

[hech54]

But later, when you try to play that disk and find it does not play through

I've never had that happen.
I've never bought into that "discs don't just go bad - it was a bad burn from the start" stuff. I've personally
had a set of Princos "go bad" on me. Played fine for a year or so then became very unstable on ALL of my devices(both players and multiple burners)....they went bad.....verified by ME.

[LIGHTNING UK!]

I have had a couple of drives that would always fail Imgburn's verify, even on something as simple as a text file,

Verify reads sectors (and there's only 1 way to do that), so it doesn't fail on a 'simple text file', the drive fails to read a sector which just happens to belong to a text file on THAT disc.

Is it necessary to verify your (video_ts) dvd's when burning?

If you want the data you've burnt to be readable by that drive, you should verify. In the case of data backups, you probably would.

Verify tests the disc is readable in that drive at that point in time, nothing more.

Other drives might be better/worse at reading the disc and sometimes (as in the case of a DVD Video disc), the odd unreadable sector might not make a difference.

Read/Verify mode (ImgBurn), Transfer rate test (CDSpeed / Opti Drive Control) and CRC error test (DVDInfoPro) are all exactly the same. They just send the drive a 'READ (10)' or 'READ (12)' command over and over again for all the sectors on the disc, informing the user of any failures reported by the drive.

Verify is slightly unique in that it then compares what's read from the drive against the source. Miscompares between the two are reported to the user. A miscompare could even come about due to a generic memory issue - like those detected by MemTest86+ etc.

Everyone is entitled to their own opinion but you shouldn't be so quick to write off a feature which essentially trying to do you a favour.

[SatStorm]

My DVD recorder is old now, so I use verify so to be sure that the disc is ok.
In the past I use to never test discs and I paid the price with the loss of valuable data on bad burned DVD-Rs.

[guns1inger]

Trust me, it was not written off lightly, but after repeated attempts to get it to work. The same discs that would consistently fail Imgburn verification would happily pass DVDInfo Pro read and speed tests, and still read faultlessly today. On other drives (Pioneer, especially) verification works as advertised, but on the lite-on and and LG drives that I have used, it simply did not.

[davexnet]

That's an interesting point about the failing verify. I wonder if Imgburn's author know's about that?

I've a stack of DVD'RW's I rotate and occasionally, there's a speck of dirt or a finger print that I didn't see
and the verify notifies me of a problem. Simple matter to look a little closer at the disk, wipe it with a soft towel,
and then it works the next time. Once it works I delete the source files.

[hech54]

That's an interesting point about the failing verify. I wonder if Imgburn's author know's about that?

LIGHTNING UK(posted above) is the author.

[Noahtuck]

Personally i have used it maybe 3 times out of 1000's of burns and i've never had any issues not using it.

[TBoneit]

I do tend to Verify since I erase the source when done. On unimportant data I'll let it start and if it goes ok then I'll abort the verify. On RW discs I;'ll always use verify. And right now i'm verifying BD-R discs. That's how I found out that the cheapos I tried were no good. the Verbatims all passed. I always burn with ImgBurn, Thanks LIGHTNING UK. That's the only burning software I even installed, Excluding TMPGEnc's DVD Author burning engine.

[JoeS99]

I always verify and do a quick check of the disk in another drive.
I have a batch of Sony DVD+R disks that burn and verify, but won't read in the other (Read only) drive. I thought my burner had gone bad until I tried another pack of Sonys. Now, I don't know what to do with the flakey Sonys!

[MilesAhead]

I don't think it has much import how it will play in a stand-alone dvd player. I had an old film that I burned on dvd-r dvd5 blank some years ago. It played like crap. It froze for several seconds at various places in the movie. I copied the VIDEO_TS folder onto my HD and burned it to dvd+r disc and also did some stuff to convert it to 16x9 video while I was at it. The files read fine from the computer optical drive. No retries or read errors. I think my stand-alone just doesn't like dvd-r as much as dvd+r.

The only "verify" I would bother with is creating MD5Sums from all the files on the disc and see if they match those on the folder on the HD. If they match then it burned it.

[hardy]

I never use the verify option.

[rcubed]

Hi,
Accuse me of being anal retentive but I always verify and do a quality scan (currently using opti drive control) and keep the results in case a disk goes bad later. If you keep the source material on your HD and have a chance to verify the disk is ok on the standalone that would be pretty good test. I'm a retired electrical engineer so that explains (or is at least an excuse for) being extra conservative .

I occasionally find scans that indicate a problematic area on the disk, either hi PIs or POs (usually under the 300 limit and 4 limit) and will reburn on a newer disk. I usually get burns under 30 and usually 2. These would not show up when playing on a standalone player. Also scanning indicates if there is a concentrated area on the disk that has problems. Knock on wood but I have disks dating back to 05 or earlier and have never had a disk go bad, but then I only use 8xTYs or Verbatims. I seem to have more trouble with the disks that are shrink wrapped (printable) rather than ones shipped in a spindle container. I haven't found any TY white printable that aren't shrink wrapped. I think the shrink wrapped ones can shift in shipment and get scratches on the surface. The other explanation for the white printable might be the coating is put on after the disk is manufactured, so more handling, better chance of disk getting scratched or dirt on the surface. I always transfer the white printable to an empty spindle container until I use them.

Just personal choice.

rcubed

[mrjust]

I would verify my dvd and cds at the begging, but I stopped doing it and I haven't noticed a difference at all. The videos play fine
By the way Sony sucks! I used it for a while and out of the cake of 50 I had 80% coasters. Now im with Verbatim and once that cake is done im going with TY, since I've heard wonderful things.
And thank you all for the replies.

Administrator can you make a poll on this? It seems like a very debatable subject

[lordsmurf]

I have had a couple of drives that would always fail Imgburn's verify, ... yet the same disc would always pass muster using other tools ... It seems to be drive dependent, but that was enough to put me off using. I won't burn with anything but Imgburn, but I won't let it verify it's own work.

This has been my experience, too.
The same is true of Nero's verification features -- false results, both positive and negative.

It would be good if LightningUK! could figure out a way to collect data from false results, in order to tweak what's going on. How hard that would be, I have no idea, as I'm not a programmer. I sometimes wonder if it's an issue of "size on disk" vs actual file size that confuses the verifications. Remember that the file systems of the computer hard drive and the disc are not the same. And in my experience, it is the small files that cause the bad results -- not the big VOB files.

[AlanHK]

I would verify my dvd and cds at the begging, but I stopped doing it and I haven't noticed a difference at all. The videos play fine

Verification is a read back of the disc after the burn. So it can never improve the disc. It's supposed to tell you the quality of the burn.

[bbanderic]

I usually verify my "playable" discs with ImgBurn, never had a failure with my Pioneer and NEC DVD/BD drives.

If you're archiving your collection, burn as "data" discs accompanied by an md5 file for each movie/program or whatever, IMO this is the best way to test data integrity. Remember, as Lightning UK said, the verification feature, regardless of the program used only tests the readability of the disc in that particular drive that you're using at the time. I burned all my DVD's as data on BD-R, saves a lot of space.

[fritzi93]

Hardly ever used it until recently. My new printer can do inkjet printable DVDs, and SFAIK Verbatim doesn't make *hub* printables. So for the hell of it I got a 50 pack of "Titan" DVD+R-DL discs (very cheap). I wasn't too surprised that they turned out to be CMC_MAG D03-64. Great, we'll see just how cheap they really are. And better let ImgBurn verify them too.

The failure rate was 10%. Here's the interesting thing: Only one failed outright. The others burned okay (supposedly) but failed verification. The first time it happened, I jotted down the LBA block address that ImgBurn kindly informed me had an unrecoverable read error. Popped the disc in my standalone Sony BD player, started at the chapter I estimated was just before the bad spot and started watching. Sure enough, it hit that spot and jumped to the next chapter.

I confess that what I know on this subject I've either read here, at nomorecoasters, or found out empirically. A disc may verify okay and still be bad, for all I know. As far as I'm concerned though, if it fails verification, it's definitely bad. Had I not used verification, I wouldn't know I had four bad AVCHD backups. BTW, I've played several of those (successfully) verified CMC DL discs all the way though and they were okay, no glitches. [shrugs]

For what it's worth.