[alanbjames]

I have a 32gb USB Pen that for some reason corrupted 2 files, a Text file which was 7k which when trying to read would show corrupt text and a video file which was 637mb which wouldn't play.

I did a full format on the pen to see if it would pick up any bad sectors or so on and it now says i have 31.1GB free of 31.2GB.

I performed a Check Disk in DOS prompt and this was the result...

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\alans>chkdsk v:
The type of the file system is NTFS.

WARNING! F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)...
256 file records processed.
File verification completed.
0 large file records processed.
0 bad file records processed.
0 EA records processed.
0 reparse records processed.
CHKDSK is verifying indexes (stage 2 of 3)...
274 index entries processed.
Index verification completed.
0 unindexed files scanned.
0 unindexed files recovered.
CHKDSK is verifying security descriptors (stage 3 of 3)...
256 file SDs/SIDs processed.
Security descriptor verification completed.
9 data files processed.
Windows has checked the file system and found no problems.

32767967 KB total disk space.
21568 KB in 5 files.
8 KB in 11 indexes.
0 KB in bad sectors.
67207 KB in use by the system.
65536 KB occupied by the log file.
32679184 KB available on disk.

4096 bytes in each allocation unit.
8191991 total allocation units on disk.
8169796 allocation units available on disk.

Im just wondering what are these so called files its processed and so on as the drive should be completely empty now.