I'm interested in these questions about block size, primarily for relevance to flash storage. Partitions.Show detail ~ ... Disk: IDE1, 497MB = 1018080 * 512, removable, CHS: 1010*16*63, SAMSUNG CF/ATA, mntcnt=1 ... suggests a block size of 512 bytes. Partitions.ShowAosFSLimits ~ Aos file system limits with 4096 byte sectors ... suggests a block size of 4096 bytes, or might simply mean "If the block size is 4096 bytes, then these are the file system limits." Partitions.Mod has BS = 512; ... N2KSS = 2048; A block size of 512 seems fairly definite. What is N2KSS? Any ideas why ShowAosFSLimits mentions 4096 bytes? ProjectOberon.pdf doesn't mention N2KSS. Thanks, ... Peter E. -- 123456789 123456789 123456789 123456789 123456789 123456789 123456789 12 Tel +13606390202 Bcc: peasthope at shaw.ca http://carnot.yi.org/ "http://members.shaw.ca/peasthope/index.html#Itinerary "