On Wed, 1 Jan 2014 23:01:35 -0800 (PST) Jim Michaels wrote : " ?hi... is there a chance it could work with any sector size, so that it doesn't have to be modified when things change again latrer? that could be extremely useful, since worm drives have 512, 1024 byte sectors, Advanced Format drives have 4096 byte sectors, and drive manufacturers are likely to increase this value as time goes on. so having something that can handle a variable number of sectors would be best. "
It certainly can be made to work with alternate sector sizes, I do not have so exotic devices available to me for testing, however. As far as rotating disks are concerned, 4,096 bytes are the new standard se"ctor sizes, I don't think it likely to change in the foreseeable future. I've just looked up and found this blurb from IBM, what it describes is the kind of devices you had in mind - I guess : "Both WORM and erasable cartridges must have a sector size of 1024 bytes per sector for 1x, 2x, and 4x media. For 8x media, permanent WORM must have a sector size of 2048. Continuous composite write-once (CCW), WORM, and erasable media can either be 1024 or 2048 bytes per sector. 14x media is available in CCW and erasable in 2048 or 4096 bytes per sector. UDO media is available in 8192 bytes per sector." Were you asking just in theory, or nave you got specific devices you'd want to test accessing in DOS ? I could send you a custom driver for a specified sector size. Note that your device should be partitionned a la conventional hard-disk (with MBR), the partition which you will access must be a "FAT" type and reside entirely within the first 16 million sectors (2^24) - this last restriction will be removed - and YOU must provide an "ASPI" DOS driver for your physical device ! " this is a very nice Christmas present! cool! usb disks! I like this!" Me too :=) -- Czerno ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Freedos-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-devel
