DaveC

The CMC's I burned a year ago are fine, and some have been in use played 3 times a week by my 4 year old kids, no problems. However, I still have a spare pack of 50 memorex disks 16x +R hanging around, I will updrade again to version 2.2 and see if I get Samsung drive issues on burns with those media. Remember tho I said that although they (the CMC MAG discs) burnt OK on the NEC drive they were slower burns as the software didn't seem to cope as well. If I find the memorex burns OK, then it still begs the question: Why should an earlier version of the software burn more reliably with inferior media, on 2 different DVD drives, than a later version which burns more slowly and less reliably?.....you wouls sorta expect the later version of software to be more tolerant rather than less. I know you guys are focussing on media and I agree that not all media/drive combinations work well, but it usually is exactly that media/drive combinations, that tend to be independent of decent burning software (assuming the burns are being attempted at the maximum supported speeds. The CMC MAG discs work fine with the samsung and other burning software, including IMGburn 2.1.0.0...it's just a problem with 2.2 (only) I also agreee that the media i mentioned are cheap media (the memorex ones are not of course), but I am sure you can understand my confusion. Im not trying to be difficult, but hopefully the developer will have a look and check exactly what was changed that could cause this problem.

I have burnt 100s of the CMC MAG discs, I have them in batches of 300, I used to use the old DVD Decryypter to burn them and moved to imgburn a while ago (few months), my successful burn % is something like 98%, if I do get failures it's because either I have been doing something far to processor intensive, or I have been careless with the media prior to burning. I do verify all media after the burns. I STRESS I have had NO problems with the previous version of imgburn (which I have now rolled back to). I burn around 30 discs per month and have for years. My experience with the CMCs has been no different to far more expensive discs. it also ONLY happens on the Samsung drive and NOT the NEC drive. This is reproducable and would logically point to a bug in the software. if it was media, both drives would be affected and sometimes the Samsung drive would work OK....but it doesn't

I upgraded to the latest version from version 2.1.0.0 and have experienced the following reproducable bug. With my NEC drive the burn takes place at normal although it does not seem to be handling the device buffers as well as before and overall average write speed and max write speed is slower than the previous version, but a successful burn. However, the Samsung drive in the second burn of the log has real problems and produces coasters. Note the particularily long time to Synchronise the cache at the end of the burn (annoyingly the whole log didn't copy and I have downgraded so lost the log, just noticed). Anyway the synchronise of cache takes around 3 minutes before the finalising of the disk starts (it should be only a few seconds). The disk is also unplayable towards the end (not a complete coaster, but locking up in the last 6 minutes of the film). I tried this with 3 disks and the problem is reproducable. I 23:38:28 ImgBurn Version 2.2.0.0 started! I 23:38:28 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 2) I 23:38:28 Total Physical Memory: 1,047,916 KB - Available: 444,644 KB I 23:38:28 Initialising SPTI... I 23:38:28 Searching for SCSI / ATAPI devices... I 23:38:28 Found 1 DVD?RW and 1 DVD?RW/RAM! I 23:38:41 Operation Started! I 23:38:41 Source File: G:\***** I 23:38:41 Source File Size: 4,681,416,704 bytes I 23:38:41 Source File Volume Identifier: ***** I 23:38:41 Source File File System(s): ISO9660, UDF (1.02) I 23:38:41 Destination Device: [1:1:0] _NEC DVD_RW ND-3520AW 3.07 (E:) (ATA) I 23:38:41 Destination Media Type: DVD+R (Disc ID: CMC MAG-M01-00) (Speeds: 4x, 6x, 8x, 12x, 16x) I 23:38:41 Destination Media Sectors: 2,295,104 I 23:38:41 Write Mode: DVD I 23:38:41 Write Type: DAO I 23:38:41 Write Speed: MAX I 23:38:41 Link Size: Auto I 23:38:41 Test Mode: No I 23:38:41 BURN-Proof: Enabled I 23:38:41 Filling Buffer... (20 MB) I 23:38:42 Writing LeadIn... I 23:39:06 Writing Image... I 23:44:43 Synchronising Cache... I 23:44:44 Closing Track... I 23:45:02 Finalising Disc... I 23:45:15 Image MD5: b20a7df0b25a1dd6f2aa2d756a16aa5b I 23:45:16 Operation Successfully Completed! - Duration: 00:06:34 I 23:45:16 Average Write Rate: 13,606 KB/s (9.8x) - Maximum Write Rate: 19,710 KB/s (14.2x) I 23:48:40 Operation Started! I 23:48:40 Source File: G:\****** I 23:48:40 Source File Sectors: 2,285,848 (MODE1/2048) I 23:48:40 Source File Size: 4,681,416,704 bytes I 23:48:40 Source File Volume Identifier: ***** I 23:48:40 Source File Implementation Identifier: DVD Shrink I 23:48:40 Source File File System(s): ISO9660, UDF (1.02) I 23:48:40 Destination Device: [1:0:0] TSSTcorp CD/DVDW SH-S182D SB04 (F:) (ATA) I 23:48:40 Destination Media Type: DVD+R (Disc ID: CMC MAG-M01-00) (Speeds: 4x, 8x, 12x, 16x)