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Old 3 Jan 2007, 02:57 PM   #1
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Default Build Speed Very Slow?

I am using DVDRB and I was taking the DVD FILES and building the ISO to my Hard Drive, not a disk. I prefer building to my HDD then burning the ISO to DVD. When I started doing this my speed was up to 25X on the HDD and it took 2 mintes to build. Now it seems I am only building at a speed of 8X on the HDD.

Any ideas, the sytem is a AMD Athlon 64 X2 4600+ and I can rip/encode fast so I think it has noithing to do with DMA which is enabled.

Thanks,
AV
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Old 3 Jan 2007, 11:21 PM   #2
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You should expect slow speeds if you're reading/writing to the same hdd. Fragmentation could also be an issue.

Going from one drive to a physically different one is much faster.
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Old 4 Jan 2007, 10:03 AM   #3
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Default How Often??

Thanks, it just surprised me the first time I used ImgBurn to build since I thought I was burning to a DVD when I noticed a speed of 16X, then 20X, then 25X I thought my Samsung DVD-RAM RW burner is only a 16X burner. I was freaking out then saw that it was building to the HDD. When the PC was new I was getting these fast build speeds to the HDD, now it is more like 8X which is what I burn at anyways. I only have the 1 HDD, so read/write.

This is a Media Center PC so I am recording and deleting some big files not to mention the DVD files from a DVD Decrypter rip that get deleted when finished with. Is deframenting very important with a system that has these large dvr-ms files or DVD rip files on it. How often, as an estimate?

Thank you, nice program.

AV
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Old 4 Jan 2007, 10:19 AM   #4
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I have 2 USB external HDs with one internal. I am always reading from one and writing to another after processing. If I use RI4M to make an ISO of a disc, I always rip it directly to the external drive. When I read that ISO with RI4M again (mounted with Daemon tools), I get up to 21X read speeds.

But this is with AMD Sempron 3100.

Another internal drive will do wonders for your speeds when processing big files. An internal is more desirable than an external drive because greater speeds can be reached. I find DVD Shrink, VobBlanker, DVD Remake Pro, etc is much faster if I read from one drive and write to another. This way the same channel is not used for inputting and outputting.

A 2nd hard drive is well worth the investment in time saved!

EDIT: Never rip from external to external as it will then use 2 USB connections instead of one.

Last edited by Gary D; 4 Jan 2007 at 10:22 AM Reason: More information
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Old 4 Jan 2007, 10:30 AM   #5
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gary,
my fastest rip of a 4 gig movie is about 2 minutes between internal drives with plenty of free space and little fragmentation

I rarely see usb anything that can do 16x(23MB/s)

My 2 minute rip is only 33MB/s
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Old 4 Jan 2007, 11:14 PM   #6
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I've had 160mb/s before

(but that's just showing off )
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Old 4 Jan 2007, 11:35 PM   #7
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raid stripes are fast, but momentary bursts from cache are not sustainable

Quite a few years back I was measuring some transfers between hard drives, w98 sucks,
I posted my results in a 98/performance forum over at the ms newsgroups, some of the regulars
criticized my methods/tools(stop watch/calculator). The resident msmvp came back and said
that was the best methodology as it's "real".

Last edited by Chewy; 4 Jan 2007 at 11:46 PM
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Old 5 Jan 2007, 12:35 AM   #8
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*almost* sustainable

I 00:55:17 Operation Started!
I 00:55:17 Building Image Tree...
I 00:55:19 Checking Directory Depth...
I 00:55:19 Calculating Totals...
I 00:55:19 Preparing Image...
I 00:55:19 Checking Path Length...
I 00:55:19 Image Size: 1,969,815,552 bytes
I 00:55:19 Image Sectors: 961,824
I 00:55:21 Operation Successfully Completed! - Duration: 00:00:03
I 00:55:21 Operation Started!
I 00:55:21 Image Contents: 79 Files, 2 Folders
I 00:55:21 Image Sectors: 961,824
I 00:55:21 Image Size: 1,969,815,552 bytes
I 00:55:21 Image Single Layer Profile: DVD-R/RW (Media Capacity: 2,298,496)
I 00:55:21 Image Volume Identifier: TEST DVD
I 00:55:21 Image Application Identifier: IMGBURN V2.1.1.0 - THE ULTIMATE IMAGE BURNER!
I 00:55:21 Image Implementation Identifier: ImgBurn
I 00:55:21 Image File System(s): ISO9660, UDF (1.02)
I 00:55:21 Destination File: C:\TEST.ISO
I 00:55:21 Destination Free Space: 93,242,265,600 bytes (91,056,900 KB) (88,922 MB) (86 GB)
I 00:55:21 Destination File System: NTFS
I 00:55:21 File Splitting: Auto
I 00:55:22 Writing Image...
I 00:55:35 Image MD5: dd5fb365c8e6bd3ec8d27e1be3193103
I 00:55:35 Operation Successfully Completed! - Duration: 00:00:14
I 00:55:35 Average Write Rate: 137,403 KB/s (99.2x) - Maximum Write Rate: 232,282 KB/s (167.7x)
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Old 5 Jan 2007, 12:39 AM   #9
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was that raid stripe to a seperate raid stripe?
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Old 5 Jan 2007, 12:52 AM   #10
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I do believe it was, yes.
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Old 5 Jan 2007, 01:25 AM   #11
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2000/17

~120MB/s

imgburn is real slowwwwwwwwww in build mode, jk
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