Hi Luis,
Sounds like a CDP error; it's not a Soundshaper error message. The sample is probably of a type CDP doesn't like. 16-bit is normally fine. If you'd like to send me the sample I'll look into it (email rob<at>ensemble-software<dot>net).
I'm sorry we've nothing in Spanish. (I don't speak the language at all.) We could try using Google Translate on at least some of the documentation, perhaps, but someone would have to test that the Spanish made sense. If you're up for that, that would be great.
Robert