Some confusion exists in whether there is an underlying difference between the filename extension .mpg and .mpeg. The short answer is there is no difference. Both filename extensions refer to one of two MPEG standards either MPEG-1 or MPEG-2. The reason for the confusion has its history in how early versions of windows enforced a maximum of three characters for filename extensions whereas Mac OS did not have such limitations. Thus on windows the mpeg file format was referred to using the .mpg filename extension whereas on Mac OS the filename extension .mpg and .mpeg was used interchangeably but referred to the same file format. The format is still the most broadly compatible audio and video container format from the lossy class of containers. The MPEG standard is supported by numerous audio and video products and software applications.
The MP4 file format and the .mp4 filename extension refer to the MPEG-4 part 14 digital multimedia format developed by the Moving Picture Experts Group. It is used as a multimedia container to wrap encoded digital video and audio streams, including subtitles and still images if required. In recent decades, the format has been popularized as one of the main standards for streaming media over the internet and other computer networks and for the digital distribution of large multimedia files. MP4 supports a large number of compression audio codecs allowing files in this format to maintain a relatively small size without discounting playback quality.
FreeFileConvert uses tuned encoding for MPG to MP4 conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload MPG files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized MP4 results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent MP4 audio with dependable progress tracking.
The mpeg-1 file format extension is standardized in ISO/IEC 11172. It was extended from the H.261 and JPEG file formats and is capable of scaling down VHS video at a ratio of 26:1 and CD audio at a ratio of 6:1. The format allows for transcoding of video and associated audio to a maximum bitrate of 1.5 Mbit/second. The mpeg-2 format further builds upon the mpeg-1 format and is standardized in ISO/IEC 13818. Mpeg-2 adds support for interlaced video, a feature that did not exist in the previous format mpeg-1. The .mpg filename extension can refer to any one of the two formats.
The MPEG-4 Part 14 is standardized as part of the MPEG-4 format in ISO/IEC 14496-14:2003. It is recognized as a container format for audio and video streams and references several filename extensions of which .mp4 is one. The MPEG-4 Part 14 is in many ways identical to Apple's QuickTime format which formed the basis of MPEG-4. However, there are slight differences in compatibility with other previously standardized MPEG features and the added support for IOD or initial object descriptors which describe elementary data streams and set profile information of the resources needed for content playback.
Upload your video file in the MPG format from your device, Dropbox, or Google Drive.
Select MP4 as the output format and click Convert. Adjust optional settings if needed.
Download the converted video file. Each file stays available for up to 5 downloads.