Read Performance Data, Audio And Errors: Summary Of Results
All in all, the CRW-F1UX falls short of what we would expect of a 44x reader. The specified read rate was not achieved with a variety of 650 MB media. In our opinion, Yamaha would be better advised to extol the virtues of this device as a 42x reader. The drive does not cope particularly well with seriously scratched media. Its competitors do better in this respect.
Write Performance, Part I: Data CD, CD-DA, A.A.M.Q.R. And Disc-T@2
As already mentioned, the maximum write speed of the CRW F1UX is 44x on CDR media, and 24x on CD-RW media (Ultra-Speed CDRW media). Yamaha uses the full CAV procedure in order to achieve write speeds of this magnitude.
The medium turns at almost constant speed (yellow line). The write rate increases continuously towards the outside (green line).
The average write rate is just about 32.87x. As a nominal 40x writer, Waitec's Frisby II also manages to get up to 31.41x.
Data CD, Audio CD And Data RW
For the data CD test, we created a 702 MB (718384 kiloByte) image. This was burned at maximum speed in DAO mode onto a 700 MB blank.
As the screenshot shows, the process is successfully completed after 3 minutes 21 seconds.
| Speed Max | Data-CDR |
|---|---|
| 24x10x40xLiteon LXR24101A | 4:17 |
| 40x12x40xWaitec Frisby II | 3:13 |
| 44x24x44xYamaha CRW-F1UX | 3:21 |
Compared with a 40x burner, the 8-second speed advantage is marginal. Nor is the time difference of less than a minute over a 24x writer earth-shattering.