LG GSA-H55LI detail information

Writing Quality with CD-R/RW discs

Write Quality

Now we are going to test CD-R discs from different CD-R manufacturers.  To measure the write speed we will use the “create data CD” function from within Nero CD-DVD Speed.  We wrote these discs at the maximum speed that the drive supports.  For the quality test, we used KProbe 2 which is a tool developed by a Lite-On employee.  KProbe runs under Windows and works with the drives made by Lite-On.  Also note that different drives and different reading speeds may affect the results obtained when scanning the discs.  We used a Lite-On CD-RW SOHR-5239V with firmware 2$0B and scanned the discs at 48X speed.

A written CD-R disc will always have some C1 errors; C1 errors are easily corrected by the drive’s error correction capabilities.  The next level of errors is C2, while C2 errors could also be corrected by most drive’s error correction capabilities; they are not wanted on a good quality disc.  A good disc should not contain any C2 errors, and preferably have an average C1 error amount of below 2.0 for the best quality discs, or at least below 10.0 averages for good quality discs.  After C2 errors, there are only un-correctable errors that will make a disc unusable.

So, in short, our analysis will be based on these guidelines to determine the quality of the burned discs:

CD-R/RW quality scans guideline

Below you will see our obtained results:

Verbatim DataLifePlus CD-R burned good with average C1 errors of 0.38 and without C2 errors.  This media goes into the “Best” quality discs category.

Memorex Black CD-R burned with C1 average errors of 2.26 and no C2 errors.  This media goes into the “Good” category.

The LG GSA-H55LI burned the Memorex Music disc with 1.72 average C1 errors and no C2 errors; this places this media in the “best” media category with this drive.

HP LightScribe CD-R media burned with a good average C1 error of 0.27 and without C2 errors.  This media as burned with the LG GSA-H55LI goes into the “best” category.

Writing Quality with Re-Writable discs

Very high C1 errors and the presence of C2 errors place this media in the “poor” quality.

Summary

The LG GSA-H55L burned our CD-R test media with good to excellent results, however, did not do as good with the presence of C2 errors on our CD-RW disc.

Nevertheless, this is a DVD-Writer, so head on to next page and read about DVD-Writing performance and DVD media compatibility…

On the next page let’s take a look at the DVD+R/RW Writing Performance…

Reading Tests

DVD+R/RW writing performance