Mitsumi FX4820

Mitsumi FX 4820:

Speedtest:

The first and for sure most important testfeature is the CD-ROM speed. Our CD-ROM benchmark yields to the following results:

• Test with Original-CD

• Test with CD-R (green)

The high value in the maximal Access time yields through the fact, that the drive has in every test passage one sector in which the access time was so high. The rest of the sector accesses were in the scope of 500 ms! 

• Test with CD-R (blue)

• Test with scratched Original CD (Error-correcting test)

In the following tables are the comparison of the Speedvalue mentioned for a better survey.
The ROMarks, which are valued by the Access time

und the transfer rate valued by the Speed of the CD.-ROM

The graphics show a power fall off of about 70% in the case of error-correcting. Such a fall off is not unusual for CD-drives, but it is a negative effect for the drive. Also an enormous power fall off is marked in the green CD-R test, indeed the blue CD-R test is much better.
The reached speed of 24,3-fold at the original-CD test is an average over the whole CD. Because of the fact, that this drive is our first testdrive, we can only compare the values with a benchmarktest of our own hardware, especially our CD-drive ACD 361 from Artec. This drive reaches 6.9 ROMarks and an average speed of 19-fold. Because of this fact, we can conclude that the Mitsumi-drive is a little bit better than the Artec-drive, if we consider the different high speeds.

Copy of an original CD:

For this testaspect we have copied a full original CD with 630 MB to our harddisk drive and we were surprised. The CD-drive needs 8 min 50 sec for the complete copy. The compare time of the Artec-drive is only 6 min (!!), so the Artec-drive is about 3 minutes faster, although in the high-speed it is nominally slower. We noticed, that the sound of the Mitsumi-drive was low.
So we decided to make another test. This time we copied a Video-CD with only one 700 MB track to the harddisk drive. Here the Mitsumi-drive could reach its full speed. It needs only 2 min 23 sec, in comparison Artec-drive needs exactly 3 min. The sound of the drive was now higher and you can hear, that it really worked.

Summary:

In the speedtest the Mitsumi-drive should land in the middlefield, and concerning the benchmarkresults it could be a little bit better valued, but the copytest was bad. The drive can only reach its high speed if it copies large files. In the 'normal' use this case is rare, you will often copy a lot of small files, for example at a software installation .

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