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Surface Scanning....
Posted: Sat Jul 12, 2008 4:36 am
by Digital Menace
alright i got an app called dvdinfopro..
i'm new to doing this...but heres a pic of the scan....is it good or bad ?
is 99.00% quality right ? seems too good tho..i'm confused lol.
even tho it says max read spead it was reading at 2x an took like 40 mins..but i guess it switched back to max after it was done or something.
Re: Surface Scanning....
Posted: Sat Jul 12, 2008 10:10 am
by CoFree
hell i dont know
never did it before.
maybe one of the other guys have.
Re: Surface Scanning....
Posted: Sat Jul 12, 2008 11:16 am
by parminder
lol dont no bout this never used it asswell but 99% seems to look good.
Re: Surface Scanning....
Posted: Sat Jul 12, 2008 12:23 pm
by Sesshomaru
Yeah looks good to me. PIE's are normal, as long as you don't have a huge spike of them all is good. PIF's (Parity Inner Failure) are what you want to avoid, a max of 4 is very good and should make for a flawless backup. If you want to know what all this means, read here:
http://club.cdfreaks.com/f76/interpreti ... ans-80545/" onclick="window.open(this.href);return false;
Kinda technical, I'd be lying if I said I understood it fully, basically PIE's are normal, all discs will have them no matter how flawless the dyes and burn, PIF's are what you want to avoid. Large groups of PIF spikes could signal an unusable backup. Different model DVD-ROM drives scan ECC blocks differently, so a disc that might be a 98 on a BenQ might be a 90 on a LIteon. Even then, some DVD drives are less picky than others and may only struggle with high PIF discs in certain areas on the disc or maybe not at all. Just because a disc has a high PIF spike doesn't mean it's unusuable, and just because it has a very few PIF's doesn't mean it's flawless. More than anything it comes down to what dyes your DVD-ROM/Burner will read and what is compatible with the firmware. If the Media ID of the disc is not included in the firmware of the drive, then no amount of tweaking is going to make your burner read from or write to that disc. Fortunately most all newer Media ID's are included in newer drives. Unless you are using 3rd rate media made in the heart of the Amazon, your drive will probably recognize the Media ID.
So in a nutshell, PIE/PIF scans are to be taken with a grain of salt. A disc that has been used for 100's of hours may get a low quality score and play perfectly, a disc that is brand new may get a 99 score and not play. It's mainly a tool for A/V guys to brag and post caps or a troubleshooting mechanism if your backups are consistently not working. If you use quality media with quality dyes like Taiyo Yuden or Verbatim, these problems will be few and far between. In CD-DVD Speed, the disc surface scan is considered much more valid than the quality scan, it can give you an idea if the disc surface is readable, which is 80% of the battle.
Re: Surface Scanning....
Posted: Sat Jul 12, 2008 10:58 pm
by Digital Menace
yeah i couldn't get that cd/dvd speed prog to work it wouldn't install or something...lol
anyway wow thats alot of info sess...thanks for letting us know man.
this was a scan of a inda verb...i mean i guess they aren't really that terrible afterall.
Re: Surface Scanning....
Posted: Sun Jul 13, 2008 1:16 am
by Sesshomaru
No prob man, I used to obsessed with disc quality, after awhile it just didn't serve any purpose, all coasters were either user error or the occasional bad disc. If you do things right, 99% of your burns should be successful.
Re: Surface Scanning....
Posted: Sun Jul 13, 2008 6:48 am
by Digital Menace
yea man i'm pretty new to burning games, the 360 being the first console i've been doing it for and i haven't had one bad disc yet...they all work fine.
on my ps2 i just load games from the hd, which is easier lol.
anyway i'm not really obsessed with it, it's just i thought maybe these india verbs would have alot of errors or something but apparently thats not the case.
i'm glad.

Re: Surface Scanning....
Posted: Thu Aug 07, 2008 4:19 pm
by lilrevuk
I wonder if you could get the 360 drives to run with this test? That would be interesting viewing...
You could definitely do it with the Hitachi, but we all know they're really picky anyway
But it could be a decent indicator of how the drive reacts to different discs.