Need to replace my knackered old Toshiba SD -210E which has been great. Don't want to spend very much until Blue Ray etc is sorted. Like the look of the Sony, but will it be compatable with my Sony HT-K25 surround sound system? Only I saw a review on Amazon which said " it doesn't have a built in 5.1 decoder, just pass thru so make sure your 5.1 speaker package has a built in decoder. " Which has confused me. Can anyone advise?