Use the speed and drive chosen when burning, and add a speed convert function.

experimental/ecdb/trunk/src/ecdb_misc.h

@@ -17,6 +17,7 @@ int             ecdb_image_init(void);
 int             ecdb_match_keyword(const char *chk, const char *key, int len);
 char           *ecdb_strip_next_argument(const char *strip);
 char           *ecdb_strip_string(const char *strip);
+int             ecdb_speed_convert(Ecdb_Drive_Info *drive, int sel);
 
 // Also consider moving dnd stuff into its own file
 int             ecdb_dnd_position(void *data, int type, void *event);