$max = (int)($disk[$i]["size"]/$ts);
$kt = (int)(readline("No of tapes to create [max:$max] @ ".$ts."gb each:"));
+ if($kt == "") $kt = $max;
+ if($kt < 0) $kt = $max;
if($kt > $max) {
echo "Sorry, max number of tapes is $max, creating $max instead\n";
$kt = $max;