no
thats how techniqual we like to be around here... (joke)...

there are several reasons why your cd wont boot properly...

1.) there is an error on it, like when you download it and something doesnt download properly... or there is a scratch on it... (OH NO!!)

2.) you used it as a frisbie and it hates you

3.) there is something in your computer that doesnt like linux, aka, some type of hardware thats way too new or somehow has been over looked in definitions...

4.) You stole it from some kid who was playing frisbie...