BenQ
DW1620A DL Recorder -
Page 2
Transfer Rate Reading Tests
- CD Format
The BenQ DW1620A DL supports up to 40X reading speed.
All tested drives support up to 40X reading with CD-ROM and
CD-R media, and 32X with US-RW media for the ASUS and Pioneer, 40X for the
BenQ. The BenQ DW1620A showed very good performance with all
test discs, and was the fastest with USRW media, due to
the fact that both
the ASUS and Pioneer drives can read US-RW media up to 32X, not 40X.
-DVD Format
The DW1620A can read PTP Single Layer DVD-ROM discs at 16X
CAV. The average read speed was 12.08, which was enough to get first place.
With a PTP DVD-ROM disc, the starting point of the two layers
is at the inner part of the disc. The drive reads from the beginning of each
layer (inner part) progreesing towards the outer part of the disc. The reported
average speed for the BenQ drive is significantly lower than the other two
drives since the DW1620A reads the outer
parts of the disc which is the end of each layer, at a speed of 8.08X
(3~8CAV).
With an OTP Dual Layer disc, the first layer structure is the
same as the first layer on a PTP disc. The drive reads the first layer exactly
the same way as PTP discs, and at the same speed. The starting point of
the second layer of an OTP disc is located at the outer part of the disc.
The reported average speed was 6.00X (3~8CAV)
The DW1620A reported similar speed results when reading
single layer DVD±R/RW discs with 3~8 CAV resulting in a 6.25X average
speed.
The DW1620A ripped a full dual layer DVD-Video disc at an
average speed of 7886kb/sec, which is a good performance.
-Appendix