As of APRIL 16 1993, the Hitachi Beta Site OS/2 2.0 CD ROM driver program has been CLOSED. HOWEVER! The driver for Hitachi ISA bus systems with fixes for the CDR-3500 AND older interface card problems will be formally released as a part of the new CDR-EXT5D DOS driver package expected to be available the beginning of MAY! I am told by a sales rep for CDW that the price of the CDR-EXT5D is expected to be close to the current EXT4D, in the $25 - $30 range. There is no stock number available at present so orders can NOT be placed at this time. I'll post the stock number as soo as I have it. The new DOS extensions are designed for duble speed drives BUT will also benefit single speed units. If the drive is ON and a CD ROM is in the drive at boot up, the device driver will poll the drive to determine the maximum possible transfer speed rather than use a default, there by increasing thru-put as much as possible. This will also allow single speed drives to run at maximum transfer rate for the specific drive. If the drive is off or no CD present at boot, the device drivers will drop back to the default value UNLESS overridden by command line parameter settings. Thus you could boot with the drive on & CD in to allow the driver to set the maximum transfer rate for your drive, poll the driver to determine exactly what this maximum rate IS, then add the command line settings to cause the driver to ALWAYS boot at this maximum rate, even if the drive is off or empty! The new drivers are also said to be tailored to work automatically with the new MS-DOS v6 and the new MSCDEX extensions recently available. The following info may also be of interest: The OS/2 driver is intended for ISA Hitachi Bus proprietary (ie: non SCSI) systems. Drivers for ISA systems are under development but no expected availability date at present. However, there HAS been one report of the BETA driver working on an MCA system under OS/2 v2.0 here on CIS. An 'S' suffix indicates a 'stand alone'drive. Drives ending in '50' are SCSI ; otherwise, Hitachi Bus. Hope this helps some folks! Bob Weeks 18 April 1993.