If u r tryin to burn a dvd or a cd using dvd rw or a cdrw and if u get an error message " NO RECORDER FOUND " ... then u can try d/l " PXENGINE " to get it fixed .
for d/l this we have to log onto :
http://support.sonic.com/dwnld/engine.asp?type=desktop&product=recordnow

on this web page type in uer first , last name & email add , so type in all details and uncheck teh box which says emial updates and then click next

and on teh next page u will find a link to d/l " pxengine " and most of the times issue gets fixed

so worth tryin folks

all the best