A saw-tooth pattern for LG’s single-layer writes appears to indicate heavy reliance on the drive’s buffer under-run protection, even though its 4MB buffer is twice as large as those of the two competing drives.
Lite-On and Plextor proceed smoothly through the single-layer write tests in spite of their smaller 2MB buffers with an average speed of 12x, which is slightly higher than that of the LG player’s speed.
The UH08 appears stuck at 4x through the dual-layer burn test, with a saw-tooth pattern again appearing to indicate reliance on buffer under-run protection.
The iHES208 and PX-B320SA write up to the media’s 8x rated maximum, averaging 6.86x on both. The step pattern is due to the use of the constant linear velocity (CLV) recording method, which +R media uses, as opposed to the higher average performance that constant angular velocity (CAV) offers, which –R media uses.