A scroll compressor that suffers no decrease in compression performance due to leakage resulting from a twisting assembly error is provided. In the method, use is made of an optical fiber having a fiber core of the abovenamed form, which fiber is twisted at least approximately by the abovenamed defined angle and held fixed in this torsional position. The different patterns are joined by varying articulations including a W-pattern and S-pattern. The modulation and coding scheme indicator being associated with a modulation and coding scheme recently used by the wireless device. If the viewer and annotating user are associated or the viewer has specifically requested the annotations from the annotating user, the annotated media may be provided to the requesting viewer.