c210flyer

Lightning, That actually worked! ISOBuster saves an ISO file of the right size. I changed the extension to RAR and winrar opened it without any complaints and the checksum matches! Thanks again for your help, Steve

Yes, ISOBuster can do that. I'll give that a shot and report back. Thanks!

I created a large (Acronis) backup of a system prior to upgrading to a new computer. I then divided the backup into 4.37 GB (4,698,669,056 Bytes) files using Winrar. I then proceeded to burn the individual files to DVD-R media using ImgBurn. Unfortunately I decided to use the ISO9660 + Joliet formats instaed of UDF and I checked the "Allow Files Exceeding Size Limit" option in the Advanced/Restrictions/ISO9660 tab, after reading that the WHOLE file will be written to the disk even though the size will say 4 GB. When I extract the image back to disk, the ISO image size is indeed 4.37 GB. However, all methods I tried (and I tried a lot, including ISOBuster, IMGBurn Read, etc.) to extract the RAR file from the image only give me a 4GB truncated file! Any idea how I can recover the original file? I'm sure the information is there I just don't know how to get to it. TIA for your help. Steve P.S. I didn't include a log because there is nothing out of the ordinary in the log.