DVDs are a useful means of storage, particularly in the case of DVD video files. When a DVD is structured correctly, with the right types of video files, it can be played in a standard DVD player. When this structure is followed, it means that it is possible to create your own playable DVDs. However, DVDs that are typically created by the average consumer are single layer discs, with a capacity of 4.7 GB. This is an insufficient amount of space to copy a dual layer DVD. Fortunately, it is possible to compress a dual layer DVD to fit on to a single layer DVD.
Navigate to the DVD Shrink download site (see Resources).
Click the Download button, then select a location on your hard drive for your downloaded installation file.
Double-click the downloaded file, then follow the on-screen prompts from the installation wizard until DVD Shrink has been installed on your computer.
Insert the dual layer DVD into your disc drive, then launch DVD Shrink.
Click the "Open disc" button at the top of the window, then wait until DVD Shrink has read the disc and determined the compression levels.
Remove any unwanted features, such as additional foreign language audio tracks or bonus features to increase the quality of the video file that will be created.
Click the "Backup!" button at the top of the window, then click the folder button to select a location for your output video. Note that you will need at least 4.7 GB of space on your hard drive to accommodate this file.
Click the "OK" button, then wait for the compression to finish.
Navigate to the DVDFab download site, click the download button and then select a location on your hard drive for the downloaded file (see Resources).
Double-click the downloaded file, then follow the on-screen prompts until the installation has completed.
Insert your dual layer DVD into the disc drive, then launch DVDFab.
Select the region of your dual layer DVD, click the "OK" button and then click the folder button next to "Target" to select a location for your output file.
Click the drop-down menu at the bottom of the screen and select the "DVD9->DVD5" option, then click the "Start" button to begin your file compression.
Navigate to the Roxio Toast download site, click the download button and then select a location on your hard drive for the downloaded file (see Resources).
Double-click the downloaded file, then follow the prompts from the installation wizard until the installation is complete.
Insert your dual layer DVD into the disk drive, then launch Roxio Toast.
Click "Copy" from the left column of the window, then "Disc Copy."
Select the "Fit to DVD video compression" option, then click the "Record" button. When prompted, insert your blank single layer DVD into the DVD burner.
Insert the blank DVD into the DVD burner.
Launch your DVD burning software.
Select the "Create data disc" option.
Click the folder button, then select the "AUDIO_TS" and "VIDEO_TS" folders created from the earlier file compression.
Select the "Burn" or "Create disc" option and wait until your disc has been completed.
To keep the quality of the DVD at its original level, consider keeping the files from the dual layer DVD on your computer and watching them from there. A noticeable loss in quality can occur when converting a dual layer DVD to a single layer DVD.