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hul2000
06-14-2007, 09:57 PM
I was trying to copy some files from a DVD which I bought.
I get an error message "Cannot Copy File: Data Error (cycle redundancy check)"
I took it back to the store I bought it from, But it works fine on there DVD ROM.

(I have a Compaq DVD ROM)
Is some thing wrong with my system? (My DVD ROM plays other DVDs fine)
aroshj
06-14-2007, 10:11 PM
i dont know what it means.machan me wage error ekak enne ekko DVD eke problem ekak nethnum DVD-ROM eke problem ekak.samaharavita DVD eke high speed burn karala ethi.
ICE
06-14-2007, 10:13 PM
CRC acts like a checksum....

may be the checksum z failing when u r copying from the DVD.....

This may b due to bad DVD or DVD rom . but since the DVD worked fine at the shop... u better check the DVD rom...
x-pert
06-14-2007, 10:19 PM
Cyclical Redundany Check uses 1,0 bits to identify wheter there is a data error, possibly a data loss or a corruption.

So machang, if you get this error, that means the data in the DVD is corrupted or something like that.

I am not sure about CRC in the perspective of DVDs. But this is what it means in Networking. (Something similar to the above explanation)

But I hope the concept has to be the same, that means there is a data error..
gayannr
06-14-2007, 10:26 PM
usually this happens when ur ROM is pretty Old(u said it worked at the shop). When disk is burnt in high speeds this occurs usually
hul2000
06-14-2007, 10:28 PM
But the DVD worked on the DVD stores ROM. Does that mean there is a problem in my DVD ROM. I don't get the error reading other DVDs.
x-pert
06-14-2007, 10:30 PM
But the DVD worked on the DVD stores ROM. Does that mean there is a problem in my DVD ROM. I don't get the error reading other DVDs.


No this happens due to the written speed of the DVD. I think your rom must be old ryt??
That does not have the capability to read the disks written in a high speed may be...
gayannr
06-14-2007, 10:36 PM
the only Compaq DVD ROM i've seen is very old
hul2000
06-14-2007, 10:40 PM
My DVD ROM is about 1 year old. It's 16x. Is this speed enough for read new DVDs.
Lich
06-14-2007, 10:43 PM
My DVD ROM is about 1 year old. It's 16x. Is this speed enough for read new DVDs.
no i think this is because ur DVD was written in high speed which ur ROM cant read. and try cleaning ur DVD Rom and try to change the DVD as well.
gayannr
06-14-2007, 10:46 PM
its enough for reading disks and thats not the problem here u may have used ur drive extensively so now it may be weared
hul2000
06-14-2007, 10:56 PM
So, There is No choice but to replace my DVD ROM.
gayannr
06-14-2007, 10:58 PM
dont think so.
hul2000
06-15-2007, 12:07 AM
Is there any way to disable Cycle Redundancy Check temporarily?.
I've looked about it in the net and some sites say it isn't reliable (Data may be OK even when CRC says bad)
shalinda
06-15-2007, 12:14 AM
no idea
Anusha
06-15-2007, 06:40 AM
I think the DVD that you bought is in bad shape. Maybe your DVD ROM can't read it correctly. The DVD ROM at the store could be a better reader. It doesn't mean your DVD ROM has a problem. Maybe it's just not a good reader or maybe yours is normal and the one at the stores is a good reader.

Usually this happens when the disc is of very low quality and they selected a burn speed that wasn't supposed to minimize the errors.
hul2000
06-15-2007, 10:44 AM
I tried IsoBuster to read the disk. But didn't work. Is there any other software I can use?
Ranhiru
06-15-2007, 10:48 AM
Even i have got da same error as well! This happens bcoz da DVD is in poor quality!
Maybe bcoz its scratched!
thilinapm
06-15-2007, 10:50 AM
Cyclical Redundany Check uses 1,0 bits to identify wheter there is a data error, possibly a data loss or a corruption.

So machang, if you get this error, that means the data in the DVD is corrupted or something like that.

I am not sure about CRC in the perspective of DVDs. But this is what it means in Networking. (Something similar to the above explanation)

But I hope the concept has to be the same, that means there is a data error..

yes this explanation is ferfectly fitts rather then others.:yes::yes::yes::yes:
thilinapm
06-15-2007, 10:52 AM
I tried IsoBuster to read the disk. But didn't work. Is there any other software I can use?

machan see wats anusha has said to you.
he is always right abt these kind of things.:yes::yes:
thilinapm
06-15-2007, 10:55 AM
So, There is No choice but to replace my DVD ROM.

why do that?
it seems that ur dvd rom is fine,just it cant read only that disk may because it didnt mathing with ur drive reading speed.and these kind of things is not happening always,just replace ur drive if this happend in future .