Verbatim External 4K Slimline Blu-Ray Recorder
8. DVD Defect Disc Tests
ABEX TDR-821 (Single Sided Single Layer Scratched Media)
The drive reports a perfect reading CAV curve.
Scanning the ABEX TDR-821, show a significant number of errors (PIE/PIF), which however can be corrected from the drive's internal error correction abilities. PIE errors are kept low when the media is not scratched and got high peaks when the PIF errors are also high. No POF (unreadable area) was reported.
ABEX TDR-825 (Single Sided Single Layer Defect Media)
The drive doesn't seem to have any problem with the TDR-825 disc, it shows a perfect reading CAV curve as well. The reported PIE/PIF values doest affect the reading speed, since all errors are being corrected from the drive's internal error correction.
ABEX TDR-841 (Single Sided Dual Layer Scratch Media)
Using the ABEX TDR-841 media, we got very good reading speeds. The drive doesn't support dual-layer scans with OptiDriveControl (scan stops at dual-layer break) so we won't post such scans.
ABEX TDR-845 (Single Sided Dual Layer Defect Media)
The drive has excellent reading curves for both layers. The drive doesn't support dual-layer scans with OptiDriveControl (scan stops at dual-layer break) so we won't post such scans.
ABEX TDV-541 (Single Sided Dual Layer Scratch Media)
The TDV-541 disc seems to trouble the drive and there are some speed drops, however, we didn't have a read error. The drive doesn't support dual-layer scans with OptiDriveControl (scan stops at dual-layer break) so we won't post such scans.
ABEX TDV-545 (Single Sided Dual Layer Defect Media)
The drive manages to read the disc without many issues.