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MITSUMI CR 4804TE
CD-ROM features: The reading speed of the writer is specified with 24-fold. Therewith lies the CR-4804TE in the upper region concerning the nominal reading speed. The maximal speed (January 2000) lies at 32-fold. The speed of the drive is measured by the benchmarkprogram Maxa CD Bench Pro. This rates the average speed over the whole CD and delivers access times for several data, from which the ROMarks-value is calculated. With several CD-types the drive reaches the following values:
By a look on the tables you can see, that the speed of the drive is independent of the CD-type. It lies at 8-fold. But the access time has changed. The drive has problems with green CD-Rs. It needs the double access time. This behaviour is very similar to the CD-ROM of Mitsumi. Blue CD-Rs are no problem for the drive. It is conspicuous that the CPU-load lies at about 60 %, but in previous tests of CD-ROMs this values at about 95 %. An explanation of this fact is possible, if you have a look at the speed factor and the access times. An average speed of 8-fold and access times of medial 150 ms claims the CPU because of the low data mass not so much as faster drives with lower access times. For a mass of the error-correcting we started the benchmarkprogram with a scratched CD. Here is the result:
You can see, that the speed factor reaches 8-fold as in the previous tests with 'normal' CDs. This is a positive result. The access times have verifying the other values a loss of 50 %, that can be explained by the sratches. This loss lies in a suitable measure. An further aspect for the speed of a drive is the copy of a full CD to the harddiskdrive. The CR4804TE needs for the copy 6:05 min. If you compare this time to other CD-ROMs, e.g. Artec 36x needs 6:00 min, Mitsumi 48x needs 8:50 and our topdrive the Cyberdrive 48x 3:33 min. Regarding the topvalue of 3:33 min, which is reached by a nominal twice faster CD-ROM, we are with 6:05 min faster than the double toptime (7:06 min). So the drive can compete with the other fast drives. In this sector a really top performance. An amazing aspect appears in the audio-grabbing test. The CR-4804TE grabs inner musictracks with (nearly) the sam speed as outer musictracks:
Having a look at the compare values
we can datermine, thet the drive delivers really good values. It can compete with the Mitsumi 48x and the Artec 36x CD-ROM, but it can't reach the top speed of the Cyberdrive 48x. The CD-ROM features of the CR-4804TE are throughout good. In every test it can concurate with the faster drives and is partially faster. The one and only penalty is the enormous increasing of the access time, if the drive reads green CD-Rs. In this case the drive behaves similar to the error-correcting test, although the green CD-R has no scratches.
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