Hi guys, I hope somebody know the app that would remove header from a bunch of files (1000+) Each file is up to 1 Gb in size The header is of different size in each file, but the only constant is that at the end of that header there is normal avi header Code: Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 0000BD20 F9 7F D9 23 A6 79 3C 67 A9 23 A9 53 41 B5 A6 48 ù.Ù#¦y<g©#©SAµ¦H 0000BD30 D9 03 07 DD 92 73 91 B4 67 8C 1C 73 EE 28 AF 58 Ù..Ý’s‘´gŒ.sî(¯X 0000BD40 E3 B3 95 9D DA FF 00 B7 9F 74 FB 3E AB FA EB FF 㳕.Úÿ.·Ÿtû>«úëÿ 0000BD50 D9 52 49 46 46 82 31 40 00 41 56 49 20 4C 49 53 ÙRIFF‚1@.AVI LIS 0000BD60 54 7E 22 00 00 68 64 72 6C 61 76 69 68 38 00 00 T~"..hdrlavih8.. 0000BD70 00 40 9C 00 00 00 00 00 00 00 00 00 00 10 01 00 .@œ............. Basically I need to remove everything BEFORE RIFF Help appreciated Thanks sebus