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JFileRecovery is a Java application that can copy files from damaged storage devices and media, skipping over problematic regions that typically cause copying to fail. If the file is listed, there is a good chance that JFileRecovery can salvage much of the data with minimal corruption. For many media files such as MP3, MPEG, AVI and JPEG, corruption is often not even noticeable. Copying large video files from scratched CDs and DVDs often results in CRC errors, aborting the process and making transferring the file impossible. JFileRecovery can bypass these CRC errors, with minimal data loss which may only be noticeable as a single bad frame in the video. JFileRecovery is not based on low level disk reading but on the observation that damaged areas take longer to read. The multi-threaded design of JFileRecovery makes it possible to abort reads from slow responding regions and continue the copy process. Additional attempts at recovering bad regions can be made as required. JFileRecovery was developed to recover large video files from CDRs with scratched top surfaces. Blocks of 1KB in size are not noticeable in most video files unless they occur at the very beginning or end of the file.
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