--- coreutils/doc/coreutils.texi	2006-12-14 15:46:08.000000000 +0100
+++ coreutils_modified/doc/coreutils.texi	2006-12-20 20:15:52.000000000 +0100
@@ -7155,25 +7155,26 @@
 @opindex ibs
 @cindex block size of input
 @cindex input block size
-Read @var{bytes} bytes at a time.
+Sets the input block size to @var{bytes}. dd will read @var{bytes} per block.
 
 @item address@hidden
 @opindex obs
 @cindex block size of output
 @cindex output block size
-Write @var{bytes} bytes at a time.
+Sets the output block size to @var{bytes}. dd will write @var{bytes} per block.
 
 @item address@hidden
 @opindex bs
 @cindex block size
-Both read and write @var{bytes} bytes at a time.  This overrides
address@hidden and @samp{obs}.
+Sets both input and output block sizes to @var{bytes}. dd will read and write 
address@hidden per block. This overrides @samp{ibs} and @samp{obs}.
 
 @item address@hidden
 @opindex cbs
 @cindex block size of conversion
 @cindex conversion block size
-Convert @var{bytes} bytes at a time.
+Sets the conversion block size to @var{bytes}. dd will convert @var{bytes}
+per block.
 
 @item address@hidden
 @opindex skip