I already opened a thread about this problem but this one for those who have faced this problem & can't find a solution because all solutions in this thread was failed
http://fileforums.com/showthread.php?t=98146
First of all i rewrite this thread after many tests
so basically the problem is one of those
1- you don't have enough memory to handle srep like those who have 4 GB Memory / less & do hard work on pc during the compression
or
2- you are using masked data / Masks methods & have a problem or something wrong with your arc.ini or it's a bug
Solutions
1- Buy a new larger ram if you have 4 GB ram buy another one
2- for masks method use cmd / batch & don't use masks for ex :
arc a -ma9 -ds -lc2000 -ld2000 -di -i1 -ep1 -ed -r -w.\ Data\Fireburst.arc -msrlz "I:\1\Fireburst\*" ==> Masks Method
arc a -ma9 -ds -lc2000 -ld2000 -di -i1 -ep1 -ed -r -w.\ Data\Fireburst.arc -msrep64+exe+delta+lzma:256mb:max:bt4:128:mc10000 "I:\1\Fireburst\*" ==> no masks
the first one if failed try the second one
3- check your arc.ini for any spaces / strange characters & correct it
My story :
I had 6 GB Ram & I Compressed many games without errors
once i sold my old 2 GB Ram the problems begin to appear especially in decompression
So I was opening my FB on Chrome [Free Memory was 2 GB ] & in the same time i was compressing [Srep took about 1.9 GB]
the computer was heavy but no lag


& always decompression failed with disk full error in srep [there was over 100 GB Free Disk space ]
ok now no more FB it's sleeping time so I left my PC & closed all applications
& Left my pc with compressing a game folder [Free ram is 3GB]
I wake up & the compression was finished then i tried to decompress & it was success without any errors although srep uses about 2GB ram But it needs about 3 GB Free Ram to make an archive without errors
Story 2 :
I have RDP to compress larg files so this problem happened on the rdp

although i have 64 GB ram ?? so after many tries i got it work Just from cmd & not masked methods
I know i opened a thread which is related to this one but I think google will archive this one better than the old one which hasn't the solution