TEST REPORT

						4/7/82

Testing Shugart 850 with double-sided media and DJDMA

Diskettte formatted single-density using formt# & DJ2DB:

	Unreadable with DJDMA

Diskettte formatted single-density with DJDMA:

	No errors on seek or read/write tests

Diskettte formatted 256 byte sectors using DJDMA:

	Occasional CRC errors track 44 side 1 sector 3
	No seek errors

Diskettte formatted 512 byte sectors using DJDMA:

	Formatdj stopped verify at track 44
	No seek errors
	Occasional CRC errors track 44 side 1 sector 3

Test diskette formatted 1024 byte sectors with DJDMA:
	
	Random unreadable media errors during seek tests
	using Read Track Command with abort for all sectors.
	Constant Unreadable Media Errors on side 1 every
	third track using Write Track Command.  On first
	pass, progression 4,7,10,13....etc.
	Second pass 2, 5, 8, 11....etc.
	Third pass 3, 6, 9, 12....etc.


	I have examined the program code single-stepping at
the time of command execution carefully and cannot find any
errors in the command process.