if needed != None and len(needed) > 0:
					needed.rewind()
					while True:
						range = needed.pop()
						if range[0] == None:
							break
						ranges += '{}-{}'.format(range[0], range[1] - 1),
					my_headers['range'] = 'bytes=' + ','.join(ranges[0:10])

				request = urllib2.Request(request, headers = my_headers)

				source = urllib2.urlopen(request)
				new_record = {}
				new_record['_parts'] = record['_parts']
				headers = source.info()