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I was told to burn at nothing but 2.4x so i changed the option in imgburn to 2.4x. Problem or not so much of a problem I picked up 8x verbatim dl +r discs Which Works Great. now when I burned my backup it burned at 3.8x not the 2.4x i set it for ive had no problem with the backup but this is one game just dont want to have problems in the future with other backups. It nice that it backsup in 25 minutes compared to 45 minutes it was set for 2.4x but imgburn burnt it at 3.8x just wondering why that would be.



Thanks In Advance


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It depends on your drives' firmware and also the media used. If the media tells the drive it doesn't support 2.4x then it won't burn at 2.4x. The drives' firmware (internal software) also has to support this speed. If 2.4x isn't in the list of allowable speeds, again, it won't burn at that speed. Information telling what the drive and media are capable of is displayed in the right side window when in WRITE mode. Like this:



Current Profile: DVD-R


Disc Information:

Status: Empty

Erasable: No

Free Sectors: 2,297,888

Free Space: 4,706,074,624 bytes

Free Time: 510:40:38 (MM:SS:FF)


Supported Write Speeds: 4x, 6x, 8x, 12x



Pre-recorded Information:

Manufacturer ID: RITEKG05


Recording Management Area Information:



Physical Format Information (Last Recorded):

Book Type: DVD-R

Part Version: 5

Disc Size: 120mm

Maximum Read Rate: Not Specified

Number of Layers: 1

Track Path: Parallel Track Path (PTP)

Linear Density: 0.267 um/bit

Track Density: 0.74 um/track

First Physical Sector of Data Area: 196,608

Last Physical Sector of Data Area: 0

Last Physical Sector in Layer 0: 0

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Here is the log


17:31:06 ImgBurn Version started!

I 17:31:06 Microsoft Windows 2000 Professional (5.0, Build 2195 : Service Pack 4)

I 17:31:06 Total Physical Memory: 523,764 KB - Available: 230,192 KB

I 17:31:06 Initialising SPTI...

I 17:31:06 Searching for SCSI / ATAPI devices...

I 17:31:36 Found 1 DVD?RW and 1 DVD?RW/RAM!

I 17:33:02 Operation Started!

I 17:33:02 Source File: G:\Newsbin Download\backup.dvd

I 17:33:02 Source File Sectors: 3,697,696 (MODE1/2048)

I 17:33:02 Source File Size: 7,572,881,408 bytes

I 17:33:02 Source File Volume Identifier: XGD2DVD_NTSC

I 17:33:02 Source File Implementation Identifier: Sonic Scenarist 3.1

I 17:33:02 Source File File System(s): ISO9660, UDF (1.02)

I 17:33:02 Destination Device: [0:1:0] Memorex DVD+-RAM 525G v1 G.01 (J:) (ATA)

I 17:33:02 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) (Speeds: 4x, 6x, 8x)

I 17:33:02 Destination Media Sectors: 4,173,824

I 17:33:02 Write Mode: DVD

I 17:33:02 Write Type: DAO

I 17:33:02 Write Speed: 2.4x

I 17:33:03 Link Size: Auto

I 17:33:03 Test Mode: No

I 17:33:03 BURN-Proof: Enabled

I 17:33:03 Optimal L0 Data Zone Capacity: 1,913,760

I 17:33:03 Optimal L0 Data Zone Method: Copied From Original Disc

I 17:33:03 Filling Buffer... (20 MB)

I 17:33:05 Writing LeadIn...

I 17:33:24 Writing Image... (LBA: 0 - 3697695)

I 17:33:24 Writing Layer 0... (LBA: 0 - 1913759)

I 17:45:45 Writing Layer 1... (LBA: 1913760 - 3697695)

I 17:56:51 Synchronising Cache...

I 17:57:14 Closing Track...

I 17:57:50 Finalising Disc...

I 17:58:46 Image MD5: 1c8eee83cb3ff27cf80c9e21317bdbd2

I 17:58:46 Operation Successfully Completed! - Duration: 00:25:43

I 17:58:46 Average Write Rate: 5,259 KB/s (3.8x) - Maximum Write Rate: 5,693 KB/s (4.1x)

I 00:16:41 Close Request Acknowledged

I 00:16:41 Closing Down...

I 00:16:42 Shutting down SPTI...

I 00:16:42 ImgBurn closed!


; Thank You


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I 17:33:02 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) (Speeds: 4x, 6x, 8x)

I 17:58:46 Average Write Rate: 5,259 KB/s (3.8x) - Maximum Write Rate: 5,693 KB/s (4.1x)

As you can see the slowest speed is 4x, and your drive wrote the media at 4x, so there's no problem.

The slowest burning speed you can get is a combination of what your burner and your media allows, so that's why some drives are able to do 2.4x while others aren't.

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Your drive only supports burning at 4x, 6x and 8x to this media. Since you set requested to burn at 2.4x, your drive is setting to the closest supported speed, 4x. A drive can't usually burn at the requested speed for the entire process so the average is usually lower than the max. In this case 3.8x.


You could look to see if there is a firmware update for your drive that would allow for other burning speeds if you are concerned about it. Normally on DL media, the slower the burn the better. This allows the drive to spend more time burning each pit on the disc which creates a better quality burn.


If you get good burns with 4x, that suits your purpose, then use 4x. As long as the disc verifies correctly and plays ok on your equipment, then that's all that really matters. I burn all my DL discs at 4x and rarely verify. I'm a little impatient sometimes.

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