40009
Known at least as early as 2001 , attempts were made by record companies to market " copy-protected " non-standard compact discs , which cannot be ripped , or copied , to hard drives or easily converted to other formats ( like FLAC , MP3 or Vorbis ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None