CD Recording Tests

- CD-R Writing Tests

The Pacific Digital U-30201 supports 8x, 16x, 24x, 32x and the maximum 40x CAV writing speeds. Below you can see the CDSpeed writing simulation graph with Taiyo Yuden 48x CD-R media.

The writing speed at the start of the disc is 18.42x and increases linearly to the end of the disc reaching a maximum of 41.51x. According to CDSpeed, the average writing speed with an 80min disc was 31.42x. The velocity throughout the whole writing process remained quite steady.

- Recording Times

For the burning tests we created an 80min data compilation with Nero Burning Rom and recorded the data on a 700MB disc. The Pacific Digital drive completed the task in 3:08 minutes, with 40x writing speed selected. The performance is quite good for 40x recording speed.

Below are the best writing times at 8x, 16x, 24x, 32x and 40x. In each case, the Seamless Link feature was enabled:

The above times with various media, shows that the drive seems to have consistent times regardless of disc manufacturer.

- CD-RW Writing Tests

The Pacific Digital U-30201 supports 24x P-CAV maximum rewriting speed, with High Speed rewritable media. The drive also writes at 4x CLV with NS CD-RW. Below are the results from the CDSpeed writing simulation test with blank 10x HS-RW media from Ricoh.

The drive starts the writing task at 18.53x and reaches the maximum 24x around the 14:00 min address mark on the disc. According to CDSpeed, the average writing speed was 25.20x and final speed of 26.49x.

We also used Nero Burning Rom to burn a data disc using 24x US-RW media from MC. The data compilation burnt had a size of 651 MB and the duration of the recording process was 3:43 minutes.

- Packet Writing Tests

Using InCD and Mitsubishi Chemicals 24x US-RW media for all Packet Writing tests, quick format took 38sec. The formatted disc had 530mbs of free space. We copied a 403 MB file (403.147 KB) from Hard Disk (on the same PC as the recorder) to the formatted RW media through Windows explorer (drag and drop).

The Pacific Digital drive gave an average writing speed of 17.9x and average reading speed of 16.8x.

- Other features