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DVD-R: writing data files to dvd, what is the size limit per individual file?  2GB?

Posted on 2004-09-30
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Is there a 2GB per file limit of a 4.7GB DVD-R?  If so where does it come from?  I'm trying to write a backup image file that is 3.9GB to DVD as data, and I get wierd errors using Roxio that don't make sense.  (buffer underrun).  The support FAQ for Acronis says that to write using this two-step method you need to split the image into 2GB files when you create it, if you plan to burn it to dvd.  This seems likely to be my problem, but now I'm curious about the file size limit.  NTFS on a hard drive has no such limit, but maybe the DVD is a different animal.  Is the file system on dvd related to FAT or something?  That's what it reminds me of.
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Question by:mark876543
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by:crazijoe
ID: 12192606
I don't know about Acronis but I do know that Norton Ghost will span the image into 2 GB files.
This could be just a problem with the image file integrity.
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Callandor earned 2000 total points
ID: 12192691
I think ISO files do have a 2GB limit - I haven't seen anything bigger on a DVD.
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by:Callandor
Callandor earned 2000 total points
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by:Iggy79
ID: 12193087
Also just so you know SP2 is causing a mess with DVD writters all over the place.  Just a heads up it might be your problem.
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by:mark876543
ID: 12193139
I'm running SP1
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by:mark876543
ID: 12193514
Thanks.  I didn't even realize that ISO was my data format on a data dvd.  I wanna go research ISO, UDF etc and try to get some ide why there are different formats, where they came from, what the uses and quirks of each one are etc.  Got any links like that?

Most of the time it doesn't matter because you read some tutorials and find a way to do some task, that works for you.  But it'd be nice to know more than just the 'which button do I push' approach.
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