Page 1 of Toslink Cables

Toslink cables seem to be ridiculously expensive.

I`ve found a site in the US selling lengthy cables at exceptional value.

Five-meter cables with Toslink plugs on both ends are $20.

http://www.core-sound.com/toslink-cables.html

I`ve got a spare 3m QED qunos cable if anyones interested £15. Cost £30.

http://www.keene.co.uk do a 5m generic for £20 and a `high quality` for £25. Not all that cheap but I couldn`t find any other 5m optical cables. Got a generic one here, works just fine.

What is a toslink cable is it a optical cable can you get them so long?
regards Presa