Originally Posted by bruceas
My receiver do not have HDMI so i will connect it by optical. Others people have this problem?
The standard itself, and real world implementations, allows the bit rates of Dolby Digital or DTS surround sound to be carried. In addition there is much source material that contains Dolby Digital or DTS surround sound, allowing it to be transported via SPDIF, in your case TOSLINK. For example, if the source material contains this stream, VLC has a setting for A/52 over S/PDIF (Under Audio->Audio device). This will cause my 10-year old Pioneer's front panel to light it's Dolby Digital icon.
The underlying standard that contains SPDIF was developed before the media industry's obsession with copy protection/DRM so the copy protection (if used) is very simple, via SCMS. Here's the old-timey copy protection, again if used:
"SCMS copy protection looks for bits written in the subcode data in a digital link. There are three states of these bits: copy allowed (00), copy once (11) and copy prohibited (10). If the source has the copy bits 00, and a copy is made of the source, the copy itself will have the bit set as 00 as well, allowing copies to be made from copies. If the source has the copy bits set as 11, every copy of this material will have the bits set to 10, and making a copy from the copy would be prohibited."