NOW what again? - Can't copy file

[Linea Recta]

Some time ago I made 2 CD-ROM's each containing an MPG file. At the time
they worked file. This night I

thought I was going to copy the files to my hard disk (for merging and
editing to make a DVD).
So I insert a CD into the DVD-ROM and try to copy the file and I keep
getting the error: "Can't copy

Opron01.mpg. Disc structure is damaged or unreadable".
When I put it into the DVD-burner I get the same message!
When I try the second CD: the same problem!
Also can't be read with TmpEnc, Restream, PowerDVD... pant...

I didn't trust this message from the beginning, because I had tested the
CD's at the time and they played

flawlessly. I couldn't believe they had both gone bad at the same time.
So I tried to play them in the stand alone DVD player and: they seem to play
fine without any problem!
What stupid operating system or application could be responsible for this?

I need to get the files on C: for editing. Have I now really lost the video
content definitely?

-Windows 2000SP3
-Nero 5.5


--
regards,

|\ /|
| \/ |@rk
\../
\/os

 

[Paul Dietrich]

I can offer reassurrance that the data is intact if you can play them on
your standalone dvd player.


First, it is possible you have a bad cd drive. Do other cds work??
Second, perhaps the cds just need cleaning.
third, it is possible that the cd driver files have becoe corrupted, and
need to be reinstalled.

 

[Linea Recta]

What strikes me as odd is that the standalone player works fine.

Exactly! That's what strikes me too. Moreoften it's the other way round. I
can remember the MPG files worked
fine at the time, since I always test my recordings after making them. And I
don't have the original on VHS tape anymore :-((
I CAN remember some vague problem in the past though, concerning CD's made
under Windows 98 not being able to be read under Windows 2000...
The CD's contain big MPG files, occupying nearly the whole CD.

Some add'l thougths:

What file system did you put on the cd?

When I look under Properties it says CDFS. After inserting the CD I can see
the file name normally (only a short name of 7.3 characters!)
I can also read the CD label "Opron 1".

Perhaps Nero (or what you
originally used to make these) burned them in a format that Windows isn't
set up to read back.

Yes, the CD's were made with (some version) of Nero.
This is what Nero InfoTool says about it, for what it's worth...
--------------
Type: Data CD (Mode 2)
Capacity: 75:42.16 (665 MB)
Tracks: 1
Sessions: 1
Medium Info: Gigastorage, CD-R, 79:59.74
File System(s): ISO9660, Joliet
Title: Opron 1
--------------

Can you make a binary copy of the disk with your burner?

Yes, it seems I can make an Image with Nero Image Recorder. The whole CD
seems to be read and I get a message "Image made succesfully". I can mount
the image with Nero ImageDrive But..... when I try to copy my file to hard
disk I get the same old error. So it is an exact copy indeed.

Were the sessions finalized?

I assume they were, because the file takes up the whole CD. Actually I never
use multi session.

Can you get these to read on a friend's machine?

That's what I tried today, but they couldn't be read. That was in a combo
drive (read DVD / write CD), nor in a dedicated CD-ROM. (also Win2k)


--
regards,

|\ /|
| \/ |@rk
\../
\/os

 

[Paul Dietrich]

Not quite sure where to go from here, but we can elimate a few things

1) The CD is not physically damaged
2) Your hardware is fine.


Please verify
You CAN:

1) Open up windows explorer
2) View the properties of the cdrom
3) See the filename
4) Copy the disk.

But you cannot:

1) Copy the file form the cd to the hard drive by using the windows
explorer, or any other means.
2) run the mpg file directly from the cd by doubleclicking it.

There is one area of concern, that may be the problem

Capacity: 75:42.16 (665 MB)
Medium Info: Gigastorage, CD-R, 79:59.74

Unless i am misinterpreting, the CD is larger than the drive capcity.
the cd is storing about 702mb data. Have you had a problem with 80 minute
cdrs before?

Can you recapture the media by playing the cd on your dvd player? I don't
know what kind of video equipment you have, but i gather from your posts,
it's pretty respectable if you copied from a tape in the first place.

 

[Linea Recta]

First of all: thanks for your input so far.
The continuing story of the CD-ROM mystery...

Not quite sure where to go from here, but we can elimate a few things

1) The CD is not physically damaged
2) Your hardware is fine.


Please verify
You CAN:

1) Open up windows explorer
Right.

2) View the properties of the cdrom
Right.

3) See the filename
Right.

4) Copy the disk.

Only when I use Nero. And I get a copy from which I still can't copy the
desired MPG file. Looks like I inadvertently invented the perfect copy
protection.

But you cannot:

1) Copy the file form the cd to the hard drive by using the windows
explorer, or any other means.
Right.

2) run the mpg file directly from the cd by doubleclicking it.
Right.


There is one area of concern, that may be the problem


Unless i am misinterpreting, the CD is larger than the drive capcity.
the cd is storing about 702mb data. Have you had a problem with 80 minute
cdrs before?

No, I think you are misinterpreting. With "Capacity" the InfoTool seems to
reflect the written amount of data on the CD-ROM.
E.g. the other CD-ROM is a different one (having the same problem):

This is what Nero InfoTool says about it:
--------------
Type: Data CD (Mode 2)
Capacity: 72:45.07 (639 MB)
Tracks: 1
Sessions: 1
Medium Info: AMS, CD-R, 74:58.00
File System(s): ISO9660, Joliet
Title: Opron 2
--------------

Can you recapture the media by playing the cd on your dvd player? I don't
know what kind of video equipment you have, but i gather from your posts,
it's pretty respectable if you copied from a tape in the first place.

I have an analog capturing card. Theoretically I could recapture from the
stand alone player, but since they are (compressed) MPG files I'm going to
loose video quality. So I would be greatly helped if I could just copy the
files in digital form... Furthermore I would very much like to know what's
going on, what went wrong, to avoid getting this trouble again in future!


--
regards,

|\ /|
| \/ |@rk
\../
\/os

 

[Linea Recta]

Hi Paul,

I'm happy to say my problem is solved!
Another user advised me to try using the program 'IsoBuster'.
I'd never heard of the app. but I dl'd it and gave it a try.
Without any further problems I could "extract" the files from the seeming
"corrupt" CD-ROM's to my hard disk. This prog. had no problems at all to
read the CD's and it was fast. Now they are perfectly readable!
But I KEEP wondering though, why Windows 2000 itself couldn't do the simple
job of copying a file!!


--
regards,

|\ /|
| \/ |@rk
\../
\/os