Recording and Verification tests
Recording :
The standard CDR-Zone.COM recording tests where used to test the DVD+R DL Media
at the maximum record speeds.
CopyToDVD from VSO-software was used to burn a Video DVD and Data DVD from my Hard drive.
Available burning speeds in the NEC 2510A showed the rated 2.4x, but inserting the media into our NEC 3500AG Dual layer drive showed 2.4x and 4x recording speeds available, capacity of the disc was 7.96 GB and to be classed as a good media, compatibility problems should not be present with both PC and newer standalone DVD Players.
RITEK are acclaimed as one of the best brands of DVD+/-R media in today's market, producing one of the most compatible dyes around - Utilizing superb premium organic dye that ensures stable writing with excellent quality.and the disc should be easily recognised in the software used for this review.
CopyToDVD recording to the Traxdata Double layer media at an over speed of 4x. Total time
for this recording for this 7.59 GB Video DVD was 24 minutes and 8 seconds. The
disc finalised without any problems and was readable in all tested drives.
The Data DVD compilation of 8Gb that was also burnt with no problems at 2.4x with CopyToDVD. Total recording time at 2.4x for this 7.83 GB Data DVD compilation was 49
minutes and 13 seconds. Again the disc finalised without any problems and was
readable in our PC DVD Rom and DVD RW drives:
Verification and error checking:
VSO Inspector, Nero CD Speed and
DVDInfoPro where used to check the recorded DVD for any bad sectors that might be present. As the screenshots below shows, no bad sectors where found during the surface or file scans:
Nero CDSpeed reporting no errors during its scan of the Traxdata D/L media recorded at its rated speed:
VSO Inspector reporting no errors during its scan of the Over sped Traxdata
D/L media:
DVDINFOPro reporting no errors during its scan of the Over sped Traxdata D/L
media:
In addition to the surface and file scans that where carried out, both Nero CD Speed and K Probe performed scans of the Traxdata 2.4x Double Layer media which had been recorded at both its rated speed of 2.4x and an over sped at 4x ( twice its rated recording speed ) to see if any unacceptable C1 or C2 errors could be found and if high jitter was found during this faster than rated recording.
The devices used for scanning was the BENQ 1620 which we have found to give very accurate scan results with CD Speed and the Liteon 1633 which gives very accurate results with K Probe.
The Kprobe scan of the Traxdata media recorded at its rated 2.4 speed shows very low PI max of 36 and an average of just 7.73 as well as a PO max of just 7 averaging a very re asurring 0.11
As the screenshots shows, an average PI (C1) error rate of 6.74 was reported with a maximum PI level of 28, with the higher levels being shown for the second layer of the recording than the first, still well below the 280 max which is when a recorded media can be regarded as bad.
The jitter reached a maximum of 11.5% with an average 8.87% reported which is also very acceptable for a media recorded at its rated speed let alone being over sped.
"It is common to see some C1(PI) and C2(PIF) errors and modern Writers are capable of correcting these easily, but there is a limit to how high the error can be before it is uncorrectable. C2(PIF) failures stand little chance of being repaired and we will not pass any nedia has good that contains them in our Disc Quality tests and would recomend a slower recording speed for amy media that shows these failures."
|
