Congratulations!  You have just received Version 1.31 of the Philips LMS CD 
ROM driver that will provide support for the 205 and 206 CD ROM Drives. There 
are just 2 simple steps for you to follow and then you will be able to use the 
new driver.

	*  Copy file
	*  Edit the CONFIG.SYS

The file DD260.SYS will need to be copied to the directory where the sound 
card files are located. (FUSION16, FUSIONLX, MMDBCD16, MMCD16, ect...)

Edit the CONFIG.SYS and remove the P: (address) and I: (IRQ) parameters from 
the CD ROM driver.  For example:

1.  EDIT CONFIG.SYS   <enter>
2.  Find the line which contains the following  (*the exception in the 
	following example would be the directory name for the sound card):
		     
	DEVICE=C:\FUSIONLX\DD260.SYS /D:MVCD001 /P:340 /I:11
	      *^ ^ ^ ^ ^ ^ <- the path may be different in your system.

   REMOVE the "/P:340 /I:11", and REPLACE it with "/F:5".

3. Save the file.

4. Reboot your computer to use the new driver. 

The new driver will automatically find your sound card and the IRQ it is 
configured for.  

HINTS:
1.  If you continue to have difficultly finding the IRQ for the CD ROM drive 
	you can force the IRQ by adding the '/I:11' back on the line as a 
	parameter.


2.  If you are having performance problems you can add host RAM for buffers 
	( /M option ).  ie:  /M:10
(Note: each number will take 2K of base memory.  The above example will use 
	20K of memory.)

Both MSCDEX and DD260 allows you to allocate buffer space in conventual RAM. 
In both cases, the number of buffers is given by an option switch, /M. MSCDEX 
will keep directory information in its buffers. DD260 uses the buffers to 
read ahead. Allocating more buffers will usually improve performance, but 
at the cost of increasing the memory used by these programs.
It is recommended that you accept the defaults offered. These settings will 
give good performance on most systems for most applications.


3.  What will the Function  ( /F:5 ) parameter do?:

Protect against sound card software hangs.
The read-ahead function of the CD-ROM device driver can be interfered with by 
similar background operation of some sound card software.  
	AND
Operate with PCs with fast busses
Most PCs can operate at the standard ISA speed of 8 MHZ.  The PAS16 host 
adapter should be used in a standard ISA bus running at 8 MHZ.  If the bus 
cannot be slowed to 8 MHZ or if the bus fails to meet ISA standards for 
signal timing, you may experience a high rate of data errors.  


DA 3-28-94
.dd260.txt
