LG GSA-4120B: High Speed Multi-format Champion

Burn Tests DVD+R Media

We used a few different DVD+R discs to show write quality and speeds.

MCC 003:

Here, Verbatim 8X DVD+Rs are burned and read with the GSA-4120B.

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Click to enlarge.

Except for the few glitches in the middle, the LG looks to have burned the Verbatim disc very well. And here they are read back with the Plextor PX-712A.

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This disc is readable by the PX-712A, but the final 1GB on the disc gave our Plextor 712A some problems. It could be worse, but it appears as if several other DVD+R discs perform better. Looking at Q-Check PI/PO portion of the read back, we see a spike near the end of the disc, suggesting that this is why the Plextor had trouble reading near the 4GB mark.

Pay particular notice to the CPU usage while reading some of these DVDRs. The LG GSA-4120B reads discs regularly with 10% - 20% more CPU usage than the PX-712A.

PHILIPS C08:

We used store-bought Memorex discs for this portion of the benchmark.

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Click to enlarge.

And here, the disc is read back again by the Plextor drive.

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Click to enlarge.

Above, you can see the Plextor drive has no problems at all reading the disc back. In the Plextor and LG drives, this appears to be a good disc.

CMC MAG F01:

The CMC MAG discs are store-bought Imation discs.

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Click to enlarge.

And here, the discs are again as played in the PX-712A.

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All looks well for this CMC disc until we get near the end of the read. We replicated this pattern on several Imation discs burned on the LG burner. Although this disc is still readable, the drastic tail off at the end of the read is discouraging.

VDSPMSAB001:

Just to keep the benchmark well rounded, we bought some low quality Platinum DVD+Rs from Microcenter.

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Click to enlarge.

Even the LG burner has trouble reading this disc just after burning it. Here is how that same disc performed in the PX-712A.

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Click to enlarge.

For whatever reason, the PX-712A calibrated itself all the way down to 2X to read this disc. This does not signal very good quality. Glancing at the Q-Check PI/PO test, we see this disc is not particularly reliable.

Below are a set of write descriptors that we could find for DVD+R media:

• RITEK R03: 8X
• MCC 002: 4X
• MCC 003: 8x
• CMC MAG F01: 8X
• PHILIPS C08: 8X
• RICOHJPNR00: 2.4X
• RICOHJPNR01: 4X
• RICOHJPNR02: 12X
• SONY D11: 8X
• VDSPMSAB001: 4X
• YUDEN000T01: 4X
• YUDEN000T02: 12X