I have one of Sony's external PCMCIA CD-ROM drives which contains an ATAPI Toshiba XM1902 16X (CDR) Drive. I noiced the connector is 50-PIN and I compared the pin-out voltages and Key codes for the drives seek, write, standby ect.. commands and they seem to match with ATAPI Toshiba SDR2412 (24x/8x-CDRW/DVD-R) Drive per the technical documentation off of Toshiba's website. My only concern is that the throughput and current load of the new drive on the existing PCMCIA controller will burn out, not work or not provide the full performance of the drive. I noticed that when sony produced an external drive with similar functionality, it required an external DC adapter and a PCMCIA controller card that supports Cardbus. Does anybody know a good resource to get the correct parts for this kind of an upgrade? Has anyone performed this kind of an upgrade on a similar slim-line external PCMCIA drive?