Forum: Bugs
Topic: Major bug on large files > 4 GB
started by: tuyen

Posted by tuyen on Jun. 16 2008,23:17
I just watched UltraISO eat up (destroy) two of my dual layer discs.  If it were the normal 4.7 GB discs, I wouldn't really care, but when the 8.5 GB discs cost 6 times the price of a 4.7 GB disc, I tend to get a little bit cranky.

There's obviously a major bug in UltraISO when it comes to writing large files to a disc.  It appears that anything larger than 4 GB for a single file results in a corrupted burn session.

I tried writing the contents of one folder to a dual layer disc.  There were 26 files in total.  Most of the files were small (less than 1 MB), but one file was 6.7 GB.  The disc was successfully completed, but when I tried copying the file back to my hard drive, I got a CRC error half-way through the copy process during the large file.  So I figured something went wrong during the burning process, and I tried again.  Same thing happened the second time.  Two different discs, both of them corrupted.

I then installed an old copy of Easy CD Creator (7.5), and went to try the same thing with the exact same files.  It worked perfectly.  I was able to copy the large file back to my drive without errors, and an MD5 checksum test proves that the file on the DVD is identical to the original from my hard drive.

In each instance, I selected the UDF option in both UltraISO and also in Easy CD Creator.  Obviously the UDF option doesn't work properly in UltraISO when it comes to files larger than 4 GB.

I was using the latest version of UltraISO (9.2.2536).  I don't understand how something like this can be allowed to remain a bug for so long and not be tested before implementing dual layer burning capabilities in the software.

Posted by xoben on Jun. 17 2008,00:51
Hello tuyen, could you please provide step by step instructions for how to reproduce this problem?

PS: As 4GB files cannot be hold in standard ISO 9660 volume, it is recommanded to use 'File'->'New'->'UDF DVD image' to create an ISO or burn a DVD.

Posted by tuyen on Jun. 17 2008,17:47

(xoben @ Jun. 17 2008,05:51)
QUOTE

Hello tuyen, could you please provide step by step instructions for how to reproduce this problem?

1) Start UltraISO
2) File menu --> New ---> UDF DVD Image
3) Drag my files that I want to burn to disc
4) Click the burn icon


(xoben @ Jun. 17 2008,05:51)
QUOTE

PS: As 4GB files cannot be hold in standard ISO 9660 volume, it is recommanded to use 'File'->'New'->'UDF DVD image' to create an ISO or burn a DVD.


Yes I know that.
If you read my original reply, you'll see that I was using the UDF option in all 3 cases.
UDF with UltraISO killed two of my discs.
UDF with Easy CD Creator 7.5 worked perfectly.

The one difference I noticed with Easy CD Creator is that with the UDF option, they have a second option for a "bridge".  In order to burn files larger than 4 GB, you MUST select "No bridge", otherwise it won't let you start the burning process, which is a good thing, because it prevents you from killing a disc.

Posted by xoben on Jun. 17 2008,21:42
Thank you tuyen for your detailed information. We will check this issue and try to fix  a confirmed problem as soon as possible.
Posted by xoben on Jun. 23 2008,10:22
Just burned one Dual-layer DVD+R disc with one large file (6.31 GB, 6,777,460,736 bytes), UltraISO worked properly. Detailed information is as the following:

1) Environment
OS: Windows Vista SP1
Recorder: BENQ  DW1650
Media: MITSUBISHI DVD+R Double Layer 8X

2) File and MD5 information
# MD5 checksums generated by UltraISO (http://www.ezbsystems.com)
# Generated 2008-06-23 22:01:31

f064b6fc0f3d0e2d3de06d4453b45d3e *6gb.iso
26ee5f1307caf937bf92f71c0db45333 *boot.ima
ed4fc5980bd8b1ad869ff725c7776338 *config.sys
0bc29a3cd06ddc71e7f40dca6f39b916 *Ghost.ima
38b016e73d4cd2942e686194cc09ca84 *ghost_msdos.iso
89ecaabf9575c131284ddb67bfe94864 *ghost_pcdos.iso
aa238d2b7eaa536d60ac0df8102c7cd1 *PowerMiniPEV30-1116.iso
e10174e19f154a3e2fdb7fd3ed94d1f5 *SANDISK.iso
dcbb498218ff929f5f86b30dd274f2c0 *SANDISK_xpe.iso
8895167a794c5d8dedcc312fc62f1f1f *ubuntu-8.04-desktop-i386.iso
12f70256f140cd7d52c58c7048fde657 *udfs.sys
c176905972d38468b667f445c2f84a6a *WINXP_SP3.isz

3) Write log
1# Windows Vista 6.0 Build 6001 (Service Pack 1)
1# Recorder: (G:)BENQ    DVD DD DW1650   BCHC
2# On the fly burning
3# Media type: DVD+R DL
4# Number of blocks in ISO image is 4112896
5# Preparing media ...
6# Requesting burn at Maximum speed
7# Caching of files started
8# Caching of files completed
9# Burn process started, speed is 8.0X (11080 KB/s)
10# Burn process completed, average speed is 6.2X (8568 KB/s)
11# Waiting for drive to finalize disc (this may take up to 4 minutes)
12# Success: Finalizing media took 35 seconds
13# Burn successful!
14# Total time: 16m36s
15# Verify process started, speed is 12.0X (16620 KB/s)
16# Verify process completed, average speed is 8.4X (11585 KB/s)
17# Verify successful!

4) Verify log
# MD5 checksums generated by UltraISO (http://www.ezbsystems.com)
# Generated 2008-06-23 22:22:09

Filter: All ('>' - Passed, 'X' - Failed, '!' - Not found)

> f064b6fc0f3d0e2d3de06d4453b45d3e *6gb.iso
> 26ee5f1307caf937bf92f71c0db45333 *boot.ima
> ed4fc5980bd8b1ad869ff725c7776338 *config.sys
> 0bc29a3cd06ddc71e7f40dca6f39b916 *Ghost.ima
> 38b016e73d4cd2942e686194cc09ca84 *ghost_msdos.iso
> 89ecaabf9575c131284ddb67bfe94864 *ghost_pcdos.iso
> aa238d2b7eaa536d60ac0df8102c7cd1 *PowerMiniPEV30-1116.iso
> e10174e19f154a3e2fdb7fd3ed94d1f5 *SANDISK.iso
> dcbb498218ff929f5f86b30dd274f2c0 *SANDISK_xpe.iso
> 8895167a794c5d8dedcc312fc62f1f1f *ubuntu-8.04-desktop-i386.iso
> 12f70256f140cd7d52c58c7048fde657 *udfs.sys
> c176905972d38468b667f445c2f84a6a *WINXP_SP3.isz

Posted by xoben on Jun. 23 2008,10:27
Screen capture:
Posted by xoben on Jun. 23 2008,10:32
Test detailes:
1) Start UltraISO
2) Choose 'File'->'New'->'UDF DVD Image' from main menu
3) Add files as listed above
4) Press F7 to burn a DVD, save to a log file
5) Choose 'File'->'Create checksums' to get a .MD5 file from listed files
6) Choose 'Tools'->'Verify CD/DVD checksums' to verify the DVD just burned, save the result

Posted by tuyen on Jun. 28 2008,12:29
Thanks for the reply and for looking into it.
I don't know how to explain it.  If it's working for you but not for me, then the only thing I can think of is there is some kind of incompatibility between my drive and UltraISO...because as I said before, I had no problems with an older version of Easy CD Creator with the same drive and the same blank media.

I'm using XP with SP3
LG H62N SATA drive
Ridata DVD+R Dual Layer blank discs

Oh and by the way, I just finished burning another disc about 20 minutes ago, and I got another CRC error when I was trying to verify the files.  This time it was a regular file under 4 GB (718 MB).  Every file burned successfully, even some larger files like 1.03 GB and 1.6 GB, but for some reason, this one file gave a CRC error during reading.

I checked for any updated firmware from LG, but there was nothing for this specific model, which leads me to believe that they're not aware of anything major that needs to be fixed.

I'm not sure what else I can try except maybe lowering the burning speed to 2x, or to buy some different brand of blank discs.

Posted by gnfpt on Jun. 28 2008,16:32
Which LG do you have? Which brand of DVD9-R are you using?

~/gnfpt



Posted by xoben on Jun. 28 2008,21:11
QUOTE
Oh and by the way, I just finished burning another disc about 20 minutes ago, and I got another CRC error when I was trying to verify the files.  This time it was a regular file under 4 GB (718 MB).  Every file burned successfully, even some larger files like 1.03 GB and 1.6 GB, but for some reason, this one file gave a CRC error during reading.

Thanks for your feedback, which confirms that your problem has no relation to file-size (below or above 4GB large).

QUOTE
I'm not sure what else I can try except maybe lowering the burning speed to 2x, or to buy some different brand of blank discs.

It is recommanded to save an ISO image first, then UltraISO will verify burned media against the original file .



Posted by tuyen on Jul. 03 2008,11:40

(gnfpt @ Jun. 28 2008,21:32)
QUOTE
Which LG do you have? Which brand of DVD9-R are you using?

~/gnfpt

The answers to both questions can be found by reading the post you replied to...
Posted by gnfpt on Jul. 03 2008,17:10
Obviously I was asleep... you're right.
Ridata is not a renowed brand, as far as I can tell.

Take a look < here >

Also, I have a friend who is having problems with his SATA drive. With IDE he never had a coaster in years. Maybe is just a coincidence... or not.

Both SATA and IDE drives are from the same manufacturer.

~/gnfpt



Posted by Ryan11433 on Mar. 07 2013,16:40
Is there one for up to 250 gb or so in UDF DVD settings because I only see up settings to 50 GB. I'm asking was because it might be useful for Windows 2008 R2 using recovery option because it requests for a ISO media file other than a disk that I see.