MakeGameData is a command line tool that allows for conversion of 
Source game files from PC to 
Xbox 360 and 
PlayStation 3 equivalents. A version of this tool is available in the 
Dino D-Day SDK.
Taken directly from the Dino D-Day version's help output:
options: [-v] Version [-q] Quiet (critical spew only) [-h] [-help] [-?] Help [-t targetPath] Alternate output path, will generate output at target [-r] [-recurse] Recurse into source directory [-f] [-force] Force update, otherwise checks timestamps [-test] Skip writing to disk [-z <zipname>] Generate zip file AND create or update stale conversions [-preloadinfo] Spew contents of preload section in zip [-kvinfo] Spew contents of kvpool in zip [-xmaquality <quality>] XMA Encoding quality override, [0-100] [-scenes] Make Xbox 360 scene image cache. [-pcscenes] Make PC scene image cache. [-usemaplist] For BSP related conversions, restricts to maplist.txt. [-files <script>] Restricts processing to files specified in script. [-zipformat] Compatible zip format (Allows WinZip viewing) [-audiocache] Make PC audio _master.cache file. [-updateaudiocache] Update PC audio _master.cache file w/ new or changed .wav files. [-language <name>] Build _master_name.cache language specific cache file. [-ps3] Build for Sony PS3 [-sonyps3] Build for Sony PS3
[-cert] CERT build, uses environment VPC_AUTO_ARGS or VPC_CONSOLE_ARGS
Note:For filemask, you can use "*.*" to process all files.