Maximum MIMEType Length when storing type in DB

Question

According to RFC 4288 "Media Type Specifications and Registration Procedures", type (eg. "application") and subtype (eg "vnd...") both can be max 127 characters. You do the math :)

Edit: Meanwhile, that document has been obsoleted by RFC 6838, which does not alter the maximum size but adds a remark:

Also note that while this syntax allows names of up to 127 characters, implementation limits may make such long names problematic. For this reason, <type-name> and <subtype-name> SHOULD be limited to 64 characters.