		Firmware Release History
		for Yamaha CRW4260 
		CD Recorders




Changing Contents for Firmware for production of CRW4260
Version NO.:1.0g Inquiry Date: April 13, 1998

Revised version of the standard is supported for 4x writing.

Fixing problems of the new media standard:
1) Recorded medium complying with this standard are reported
   to be unreadable with some CD-ROM drives if data is recorded
   in ISO9660 format. 

   This version of the firmware solved this problem.
	*There are no problems with the following.
	-- ISO9660 recorded in Disk-at-once mode.
	-- ISO9660 recorded in Track-at-once mode, with single 
	   session and the "Close Disc" setting
	-- Other formats such as CD-DA.


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Changing Contents for Firmware for production of CRW4260
Version NO.:1.0f Inquiry Date: Feb.20.'98


Some audio CD players could not play back recorded CD's or could not
select tracks when played back.  
This revision corrected this problem.




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Changing Contents for Firmware for production of CRW4260
Version NO.:1.0e Inquiry Date: Dec.16.'97

1) There was a possibility that the system could hang up and that the
tray or caddy did not eject when using the Star_stop command (Immediate=1).
The revision corrected this problem.

2) A revision was made so that the system does not hang up even when
the buffer underrun occurs during the DAO (Disc At Once) / SA) (Session
At Once) writing.

3) A revision was made so that the system does not hang up when a series
of DAO/SAO test mode writing is executed in a row.

4) A revision ws made to give the correct value for the ISRC code when reading.





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Version No.: 1.0d 
First shipping Version

