'name' and 'description' use grave (in error), 'rom' uses \ (in error):
e.g.
game (
name "Raze`s Musicpack (19xx)(Success)"
description "Raze`s Musicpack (19xx)(Success)"
rom ( name "Raze\s Musicpack (19xx)(Success).d64" size 174848 crc e2ff4b22 md5 d64137f2f29abe3df73539098b175310 )
Two errors for the price of one!

I must have noticed this aaages ago, just completly forget to raise it....