-SPWD
-PRET			- partial retrieve I think, %s %d.
-CCTL			- control?
-SINF
-FMT			- format card?
-ATTR
-PWOF			- power off?
-SDIS <filename>	- set distinction ? what is a distinction? 
-GDIS			- get distinction ?
-ABOR			- abort for data transfer?
QUIT
-FUPL			- upload?
-FDWL
-GFCI
-GFGI
-SGID


Internal ftp style commands:
"-VER"			- 200 9.2 01.06
"-FDAT folder/file"	- 200 date=2003:10:08 16:57:06 for -FDAT.
			- 200 date=%s for -FDAT.

"-INFO folder/file" 	- 200 %d byte W=%d H=%d K=%d for -INFO

"-GSID"			- 200 SD ID=%02x%02x%02x%02x%02x%02x%02x%02x for -GSID.
"-GCID"			- 451 -GCID command failure
			- 200 CameraID=%s for -GCID.
"-TIME"			- 200 %02d%02d/%02d/%02d %02d:%02d:%02d for -TIME.
			- 200 2003/10/11 19:47:23 for -TIME.

"-NLST"			- 150 data connection for -NLST.
			  ... data blocks ...
			  250 -NLST command success.
"-GTPN"			- 200 TotalPhotoNo=%d for -GTPN.
"-RTST"			- 200 RTC status=%d for -RTST.
"-DCAP /EXT0"		- 200 /EXT0 capacity 63520768 byte,free 39043072 byte.

"-SRET filename"	- 150 %d byte Seek=%d W=%d H=%d S=%d for -SRET.
			  ... bytes+seek image data ...
			  250 -SRET command success.

			 => Downloads exif data, at seek position is the thumbnail.

"-STOR size filename"	- 150 ... 
			  ... data transfer ... 
			  200 done

Generic ftp style commands:

"CWD folder"		- 501 CWD command failure
			- 250 CWD command success.

"RETR file"		- 150 data connection for RETR.(%d)
			  ... data , %d bytes ...
			  250 RETR command success.

"DELE file"		- 250 DELE command success.
			- 500 DELE command failure

"RMD dir"		- 250 RMD command success.
			- 500 RMD command failure

"MKD dir"		- 257 "%s" directory created.
			- 500 MKD command failure

"RNFR name"
"RNTO name"