This was on Slashdot this morning - I feel it's worthy of a repost (the archive will make a nice mirror ;)). It's a perl script that does DVD decoding, and it's something the movie industry feels we shouldn't have-- that makes it even better. :) "A rewrite, using an extra six bytes (!) of perl code, caches a table, which apparently makes the program fast enough to decode a movie in realtime: " $_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map{$_%16or$t^=$c^=( $m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;$t^=(72,@z=(64,72,$a^=12*($_%16 -2?0:$m&17)),$b^=$_%64?12:0,@z)[$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h =5;$_=unxb24,join"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$ d=unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d>>12^$d>>4^ $d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*8^$q<<6))<<9,$_=$t[$_]^ (($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}print+x"C*",@a}';s/x/pack+/g;eval As Touretzky writes on his Gallery page, typical usage is just: cat /mnt/dvd/VOB_FILE_NAME | qrpff 153 2 8 105 225 | extract_mpeg2 | mpeg2dec - ... # John Madden weez@xxxxxxxxxxxxxx ICQ: 2EB9EA # FreeLists, Free mailing lists for all: //www.freelists.org # UNIX Systems Engineer, Ivy Tech State College: http://www.ivy.tec.in.us # Linux, Apache, Perl and C: All the best things in life are free!