 
             # write id3?
             if k.id3? && rangeStart < k.id3.length
+                console.debug "Writing id3 of ", k.id3.length, rangeStart, rangeEnd
                 res.write k.id3.slice(rangeStart,rangeEnd+1)
 
             if predata? && ( ( rangeStart <= prerollStart < rangeEnd ) || ( rangeStart <= prerollEnd < rangeEnd ) )
                 pstart = rangeStart - prerollStart
                 pstart = 0 if pstart < 0
 
+                console.debug "Writing preroll: ", pstart, rangeEnd - prerollEnd + 1
                 res.write predata.slice( pstart, rangeEnd - prerollEnd + 1 )
 
             rstream = null

                fstart = 0 if fstart < 0

                fend = rangeEnd - fileStart + 1

                readStreamOpts =
                    bufferSize:     256*1024


        console.debug "firing preroll request", count
        req = http.get opts, (rres) =>
            console.debug "got preroll response ", count, rres.statusCode
            if rres.statusCode == 200
                # collect preroll and return it so length can be computed

