The Tests
  The SCSI 
    card I've been using for the last 9 months was still the card of choice: the 
    Tekram DC-315/U. With a 20MB/s bandwidth, this gem can be had in a full retail 
    box for as little as $25 shipping to your door. If you decide to have this 
    drive as your sole CD-ROM, the BIOS-less Tekram can be made bootable with 
    a little proggy I whipped up by clicking here.
   
    
      Data Ripping Speed
      
    At an average 
      transfer rate of 24X, this drive could be your only unit as mentioned above. 
      The seek times are OK for CD-R's but rather low compared to 40-56X dedicated 
      CD-ROM's. CPU utilization was low not only due to the nature of a PCI SCSI 
      card but also that the chip was a C2 533A running at 840MHz.
      
      
    Audio Ripping Speed
       
 
   
  This was 
    a minor disappointment. The 8 to 20X rated speed mimicked the PX-820's, even 
    though I was happy about testing at a slightly higher than spec 21.78X. I 
    had hoped Plextor would have had audio ripping speeds equal to that data ripping 
    speeds, but it appears that the 124Tsi is only a hot rodded 820.
  Reading CD-RW's 
    was a surprise too. I'm not posting the graphs as they waste too much bandwidth 
    and tell a slow story. The 8-4-32 managed an average read speed of 5.3X and 
    the Kenwood 72X hung in there for a lousy 3.3X. Sorry, but CD-RW doesn't make 
    much sense to me.
  In Use 
    Impressions
  Plextor's 
    are known for at least two things: reliability and usefulness when copying 
    "uncopy-able" CD's. In standard Plextor style, UT and my only copy 
    coded audio CD copied just fine with Adaptec's EZ CD Creator 4.02c. I could 
    not copy them at 12X speed though as the 12X'er decoded the audio and data 
    discs at about 300KB/s. Then I thought, "Why not pair the fastest writer 
    up with the fastest reader?" The Kenwood 
    72X IDE CD-ROM was installed and flashed up to the latest 221 BIOS.
  I usually 
    recommend for on the fly copying a reader capable of transfer rates at least 
    double the writing speed. For a 12X unit, this meant that the Kenwood would 
    have to supply audio and/or data at a rate no lower than 3.6MB/s or 24X. Not 
    even the Plextor 40X max reader can match that feat as it's minimum rip speed 
    is only 18X. The Kenwood and Plextor made an ideal high speed pair. Copying 
    all three CD types (audio, data, mixed mode) proved no sweat and the average 
    CPU utilization was a minuscule 10%.
  Conclusions
  Funny thing: 
    Plextor's used to cost an arm and a leg and now they are very competitively 
    priced. The only other 12X drives I could locate were a Sanyo and a Smart 
    & Friendly. The Sanyo was $25 less and the Smart & Friendly was at 
    least $25 more than the 124Tsi. Considering the legendary Plextor quality 
    and service (if the drive dies), the choice is clear--Plextor 12-4-32 all 
    the way! Editor's choice? Of course. Now, I wonder when the 16X'er will be 
    available... ;-)
  William 
    Yaple
    06/25/00