Please post the log from the transfer now. To get it double click the file in the transfer queue.
Other ftp clients do not verify the transfers and therefore they do not face such issues. But we believe it is better to verify the transfers by default.
Here is the log, as you see, I said the server does NOT ACCEPT the SIZE command as well as not displaying the size in a directory listing, so how do you verify size? I think it is failing because it CAN'T verify size, even though it is told the transfer is complete by the other side.
[23:58:45] Operation Begin
[23:58:45] Resolving host name "192.168.1.11"
[23:58:45] Connecting to 192.168.1.11 Port: 3105
[23:58:45] Connected to 192.168.1.11.
[23:58:45] 220 Mfs_Ftp ver 1.2.9a - {sock33} from "192.168.1.180:61151"
[23:58:45] SYST
[23:58:45] 215 UNIX
[23:58:45] Detected Server Type: UNIX
[23:58:45] RTT: 87.216 ms
[23:58:45] FEAT
[23:58:45] 502 Command not implemented "FEAT"
[23:58:45] TYPE I
[23:58:45] 200 Type set to I
[23:58:45] REST 0
[23:58:45] 350 Restart okay, awaiting file request.
[23:58:45] PWD
[23:58:45] 257 "/" is current directory.
[23:58:45] CWD /tmf
[23:58:45] 250 Directory change successful.
[23:58:45] PWD
[23:58:45] 257 "/tmf" is current directory.
[23:58:45] SIZE {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf
[23:58:45] 502 Command not implemented "SIZE {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf"
[23:58:45] SIZE not supported.
[23:58:45] MDTM {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf
[23:58:45] 502 Command not implemented "MDTM {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf"
[23:58:45] STAT {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf
[23:58:45] 502 Command not implemented "STAT {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf"
[23:58:45] Obtaining file information (size/date) from directory listing.
[23:58:45] TYPE A
[23:58:45] 200 Type set to I
[23:58:45] PORT 192,168,1,180,238,225
[23:58:45] 200 PORT command successful.
[23:58:45] LIST -aL
[23:58:45] 150 Opening ASCII mode data connection for file list.
[23:59:52] 50173 bytes transferred. (752 bytes/s) (00:01:06)
[23:59:52] 226 Transfer complete.
[23:59:52] TYPE I
[23:59:52] 200 Type set to I
[23:59:52] PORT 192,168,1,180,239,34
[23:59:52] 200 PORT command successful.
[23:59:52] RETR {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf
[23:59:52] 150 About to open data connection.
[00:03:12] 570434560 bytes transferred. (2.72 MB/s) (00:03:19)
[00:03:12] 226 Transfer complete.
[00:03:12] MDTM {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf
[00:03:12] 502 Command not implemented "MDTM {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf"
[00:03:12] Obtaining file information (size/date) from directory listing.
[00:03:12] TYPE A
[00:03:12] 200 Type set to I
[00:03:12] PORT 192,168,1,180,239,229
[00:03:12] 200 PORT command successful.
[00:03:12] LIST -aL
[00:03:12] 150 Opening ASCII mode data connection for file list.
[00:05:13] 50185 bytes transferred. (841 bytes/s) (00:00:59)
[00:05:13] 226 Transfer complete.
[00:05:13] Source File: Size=570425344, Time=2010-01-28T11:00:00
[00:05:13] Destination File: Size=570434560, Time=2010-01-28T16:00:00
[00:05:13] RecentTime=2010-01-31T05:03:12
[00:05:13] No rule matched. Default Action="Overwrite".
[00:05:13] TYPE I
[00:05:13] 200 Type set to I
[00:05:13] PORT 192,168,1,180,240,98
[00:05:13] 200 PORT command successful.
[00:05:13] RETR {Red Dawn}{1970-01-01}{}{11.00 AM Thu Jan 28, 2010}{EPIXHD}.tmf
[00:05:13] 150 About to open data connection.