a little help needs here regarding sek550 memory

Posted by dcoder405
well i'll describe it brifely, i've a k550i, recently i bought a sandisk 1gb M2. yesterday i transfered some files to phone @ memory card then i delete them (i use my phone explorer thru data cable for this). the files were deleted but when i check the memory it showed less ie, first 50 MB was free, i transfered 20MB file then delete but now it showing 30MB free although i deleted the file. why this is happening? what's the problem

i thought may be its a memory card problem then i transfered files to phone memory & same thing happen. even when in file transfer mode, i select all folders in phone memory & it was 40MB but the main property window for phone memory shows 60MB used, i donno where's the 20MB has used,

plz help me this thing is really annoying me.plz

another thing the white paper (downloaded from original se website) says k550 supports wmv,real media etc but i cant play them. i had to convert them mp4/3gp etc. can't this phone play wmv, real media? then why the white paper says so? shame!