510 Command syntax error, explanation follows (until terminating `.') You have reached the CDDB server in HTTP mode. This URL is intended for CDDB-compatible client application use only, and not for direct use. If you are testing connectivity to the CDDB server in HTTP mode, you have succeeded! However, there were no command arguments in your input. For more information, please visit the official CDDB web site at: http://www.gracenote.com/ If you have questions or comments, send email to: cddb-support@gracenote.com .