hangfire Posted February 27, 2010 Share Posted February 27, 2010 Hi I am newbie here and am trying to take backup of a Bootable OS DVD. When I create an ISO from the DVD, it creates a ISO file of about 5GB which is double layer, and DVD is of 4,7 GB. Kinda lost here, am I doing anything wrong? TIA. Link to comment Share on other sites More sharing options...
eSkRo Posted February 27, 2010 Share Posted February 27, 2010 whats the OS? Link to comment Share on other sites More sharing options...
mmalves Posted February 27, 2010 Share Posted February 27, 2010 With ImgBurn in Read mode and that disc in the drive, copy and paste here all the media information text shown in ImgBurn's main window. Link to comment Share on other sites More sharing options...
hangfire Posted February 28, 2010 Author Share Posted February 28, 2010 With ImgBurn in Read mode and that disc in the drive, copy and paste here all the media information text shown in ImgBurn's main window. Here it is - ====== PIONEER DVD-RW DVR-K17A 3.52 (ATA) Current Profile: DVD-ROM Disc Information: Status: Complete Erasable: No Sessions: 1 Sectors: 2,508,581 Size: 5,137,573,888 bytes Time: 557:29:56 (MM:SS:FF) TOC Information: Session 1... (LBA: 0) -> Track 01 (Mode 1, LBA: 0 - 2508580) -> LeadOut (LBA: 2508581) Track Information: Session 1... -> Track 01 (LTSA: 0, TS: 2508581, LRA: 2508580) Physical Format Information (Last Recorded - L0): Book Type: DVD-ROM Part Version: 1 Disc Size: 120mm Maximum Read Rate: 10.08Mbps Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 14,919,268 Last Physical Sector in Layer 0: 2,281,567 Physical Format Information (Last Recorded - L1): Book Type: DVD-ROM Part Version: 1 Disc Size: 120mm Maximum Read Rate: 10.08Mbps Number of Layers: 2 Track Path: Opposite Track Path (OTP) Linear Density: 0.293 um/bit Track Density: 0.74 um/track First Physical Sector of Data Area: 196,608 Last Physical Sector of Data Area: 14,919,268 Last Physical Sector in Layer 0: 2,281,567 Layer Information: Layer 0 Sectors: 2,084,960 (83.11%) Layer 1 Sectors: 423,621 (16.89%) ======= OS is Win_7 TIA Link to comment Share on other sites More sharing options...
mmalves Posted February 28, 2010 Share Posted February 28, 2010 That's a dual layer disc, and it was made it that way probably to discourage people from copying it. Link to comment Share on other sites More sharing options...
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