Why am I only getting maximum read speed of 6X for the Sony 16X DVD-R media?
I 16:33:34 ImgBurn Version 2.5.8.0 started! I 16:33:34 Microsoft Windows 8 Core x64 Edition (6.2, Build 9200) I 16:33:34 Total Physical Memory: 16,704,252 KiB - Available: 14,934,984 KiB I 16:33:34 Initialising SPTI... I 16:33:34 Searching for SCSI / ATAPI devices... I 16:33:34 -> Drive 1 - Info: Optiarc BD RW BD-5300S 2.03 (J:) (SATA) I 16:33:34 Found 1 BD-RE! I 16:33:57 Operation Started! I 16:33:57 Source Device: [0:0:0] Optiarc BD RW BD-5300S 2.03 (J:) (SATA) I 16:33:57 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: RITEKF1) I 16:33:57 Source Media Supported Read Speeds: 2x, 6x I 16:33:57 Source Media Supported Write Speeds: 6x, 8x, 12x, 16x I 16:33:57 Source Media Sectors: 1,708,928 (Track Path: PTP) I 16:33:57 Source Media Size: 3,499,884,544 bytes I 16:33:58 Source Media Volume Identifier: ESD-ISO I 16:33:58 Source Media Volume Set Identifier: 0E2A3506ESD-ISO I 16:33:58 Source Media Implementation Identifier: Microsoft IMAPI2 1.0 I 16:33:58 Source Media File System(s): ISO9660 (Bootable), UDF (1.02) I 16:33:58 Read Speed (Data/Audio): MAX / 8x I 16:33:58 Destination File: C:\Users\Keith\Documents\ESD-ISO.ISO I 16:33:58 Destination Free Space: 1,933,203,337,216 Bytes (1,887,893,884.00 KiB) (1,843,646.37 MiB) (1,800.44 GiB) I 16:33:58 Destination File System: NTFS I 16:33:58 File Splitting: Auto I 16:33:59 Read Speed - Effective: 2.4x - 6x I 16:34:03 Reading Session 1 of 1... (1 Track, LBA: 0 - 1708927) I 16:34:03 Reading Track 1 of 1... (MODE1/2048, LBA: 0 - 1708927) I 16:44:24 Exporting Graph Data... I 16:44:24 Graph Data File: C:\Users\Keith\AppData\Roaming\ImgBurn\Graph Data Files\Optiarc_BD_RW_BD-5300S_2.03_FRIDAY-OCTOBER-23-2015_4-33_PM_RITEKF1.ibg I 16:44:24 Export Successfully Completed! I 16:44:24 Operation Successfully Completed! - Duration: 00:10:25 I 16:44:24 Average Read Rate: 5,468 KiB/s (4.0x) - Maximum Read Rate: 7,541 KiB/s (5.6x)