The GGW-H20L is the first Blu-ray Disc burner to support 6X speed for writing to BD-R. That’s up from 4X on the GGW-H10N, and up from 2X on the early Blu-ray Disc burners from Plextor, Sony, and Pioneer. In the PC World Test Center’s evaluation, the drive’s performance reflected its boosted specs even on slower speed-rated media. (According to media manufacturers, 4X media first ships at the end of 2007; 6X media won’t come until the first quarter of 2008.)
On our disc-mastering test, we saw a 22 percent performance improvement by the GGW-H20L over its predecessor (itself a speedy performer compared with other Blu-ray burners we’ve tested), shaving nearly 6 minutes off the times we clocked. The GGW-H20L required just 22 minutes to write 22GB of data to single-layer 2X Verbatim BD-R media. Performance on formatting and packet writing to rewritable BD-RE media showed a similar boost (even though that spec technically remains unchanged): The GGW-H20L was 23 percent faster than its predecessor at this task, taking 1 hour, 43 minutes (compared with the GGW-H10N’s 2 hours, 14 minutes).