Video and audio guide

Prepare MPG and MPEG files for legacy iTunes libraries

Convert the source to a container and codec supported by the legacy iTunes library.

Updated September 4, 2026By

The free version limits many processing operations to the first three minutes. Check compatibility and trial limits.

  • Media filesVideo or audio files
  • Choose MP4Output matched to this workflow
  • The Apple media library checkVerify before batch processing

Before you begin

Match the output to its destination.

Check the codecs inside the source container and the requirements of the target player, editor, or device before converting.

Prepare MPG for an Apple media library

Apple media applications can accept only supported combinations of container, video, and audio codecs. Test the MPG source in the current destination application before converting it; the filename extension alone does not determine compatibility.

When conversion is required, create an MP4 with H.264 and AAC for broad Apple-device playback. Match the source aspect ratio and frame rate, then verify picture and audio sync after adding one file to the library.

Workflow direction

Follow the intended workflow below.

Convert the source to a container and codec supported by the legacy iTunes library.

Three-step workflow

Create and verify one test output before processing the full batch.

Convert the source to a container and codec supported by the legacy iTunes library.

01

Add the source

Load the MPG or MPEG files

Open LosslessConverter and select Add Files. Add the MPG or MPEG files and select the files required for this workflow.

LosslessConverter main window with the source controls visible
Source toolbarLoad the source from the main toolbar.
02

Create a broadly compatible file

Choose Video > MP4

Open Output Format, select the Video group, and choose MP4. Start with Same as source, then change resolution only when the destination requires it.

LosslessConverter Output Format menu with Video and MP4 selected
MP4Select Video, then choose MP4.
03

Create the current output

Select Start All, then verify in the Apple media library

Choose an output folder and select Start All. When processing finishes, add the MP4 files to the Apple media library and verify picture, audio, and sync on the intended Apple device.

LosslessConverter main window with Start All ready at the lower right
Start AllRun the task, then verify the result.

Try it with your own media

Process one file, verify the result, then run the full batch.

The free version limits many processing operations to the first three minutes. Check compatibility and trial limits.