Convert MPEG to MP4: Classic Video Modernized
Convert MPEG/MPG videos to MP4 for universal playback. Works with MPEG-1, MPEG-2, and all classic MPEG formats. Free online video converter.
MPEGに対応
アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。
変換設定: ファイルを追加すると調整できます
安全な転送
HTTPS暗号化アップロード
プライバシー優先
ゲストのファイルは約2時間で自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
About MPEG files
MPEG files (.mpeg or .mpg) usually hold MPEG-1 or MPEG-2 video. They come from DVD-era camcorders, TV capture cards and older editing software.
MPEG-2 needs a high bitrate for good quality, so these files are big. MP4 with H.264 gives a similar picture at a much smaller size and plays on current devices.
How we convert MPEG to MP4
- Always re-encoded
- The MPEG video is re-encoded to H.264 High profile at CRF 23.
- Audio
- MP2 or other audio is converted to AAC at 192 kbps.
- Resolution and frame rate
- Kept from the source unless you pick new values.
- Presets
- Choose High (CRF 18) for archiving, or Low (CRF 28) for a small file to share.
Common problems and fixes
The picture has comb-like lines on moving edges.
TV and camcorder captures are often interlaced. The conversion keeps the original frames, so play the MP4 in a player with deinterlacing turned on.
The file from the capture card does not convert.
Captures that stopped abruptly can be damaged at the end. Try another copy or a shorter part of the recording.
I need the result much smaller.
Pick the Low preset. MPEG-2 sources usually shrink a lot when turned into H.264.
MPEG から MP4 への設定
- エンジン
- メディア
- 設定
- 調整できる設定: 31
- Trim Start
- Trim End
- Volume
- Audio Fade In
- Audio Fade Out
- Video Codec
- Quality (CRF)
- Encoding Speed
- Profile
- Level
- Tune
- Resolution
MPEGからMP4への変換について
MPEG formats dominated video from the 1990s through the DVD era. MPEG-1 powered Video CDs, MPEG-2 powered DVDs and broadcast TV. While these formats still work, modern devices and platforms expect MP4 with H.264. Converting MPEG to MP4 brings classic video into the universal playback ecosystem.
The conversion transcodes older MPEG codecs to efficient H.264, typically producing smaller files with equivalent or better visual quality. Your VCD collections, DVD backups, and captured broadcast content become portable, editable, and universally compatible.
MPEGをMP4に変換する理由
Modern compression efficiency. H.264 produces 50-70% smaller files than MPEG-2 at equivalent quality. Your converted videos are lighter and load faster.
Universal device playback. While computers can still play MPEG, many smartphones, tablets, and smart TVs prefer or require H.264/MP4. Converting ensures playback everywhere.
Editing and platform compatibility. Video editors and upload platforms work better with MP4. Converting before editing or uploading streamlines your workflow.
主な活用例
- Converting VCD collections to modern format
- Modernizing DVD backups
- Processing captured broadcast recordings
- Converting old MPEG video archives
- Preparing MPEG content for editing
- Making legacy video playable on smartphones
- Converting captured analog video transfers
- Archiving video collections in efficient format
仕組み
The conversion identifies your MPEG variant and transcodes to modern H.264.
**Format detection**: We identify MPEG-1, MPEG-2, or MPEG-4 Part 2 content. Each receives appropriate decoding and encoding treatment.
**Video transcoding**: MPEG video decodes and re-encodes to H.264 at optimal bitrate. We analyze content to preserve quality while achieving efficient compression.
**Audio handling**: MPEG audio (MP2, MP3, or AC3) converts to AAC for maximum compatibility.
**Interlacing**: MPEG-2 broadcast content is often interlaced. We can preserve interlacing or deinterlace for better appearance on modern progressive displays.
品質とパフォーマンス
H.264 output typically improves efficiency while maintaining quality. From MPEG-1, expect significant compression improvement. From MPEG-2, expect 50-70% smaller file sizes at equivalent quality. Resolution preserves—VCD content is 352x240; DVD is 720x480/576. These dimensions stay the same.
デバイス互換性
| Device | MPEG | MP4 |
|---|---|---|
| iPhone/iPad | No | Native |
| Android | Partial | Native |
| Windows PC | Native | Native |
| Mac | Partial | Native |
| Smart TV | Partial | Native |
| Web Browser | No | Native |
MPEG to MP4: real-world performance
| Speed | ~6 seconds for a 10-second clip. |
| Output size | Usually smaller — H.264 is far more efficient than MPEG-1/2. |
| Quality | Re-encoded to H.264/AAC; modern compatibility with no visible quality loss at the default. |
| Engine | Media engine (H.264), server-side. |
Measured on our servers, June 2026, on a 10-second 1280×720 clip. See all measured conversions →
プラットフォーム別の推奨設定
YouTube
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 High Profile, AAC audio
Instagram Reels
Resolution: 1080x1920
Bitrate: 3.5 Mbps
Vertical 9:16, max 90 seconds
Resolution: 960x540
Bitrate: 1-2 Mbps
Max 16MB, keep under 3 minutes
TikTok
Resolution: 1080x1920
Bitrate: 4-6 Mbps
Vertical, max 10 minutes
Twitter/X
Resolution: 1920x1080
Bitrate: 5-8 Mbps
Max 512MB, max 2:20 minutes
Discord
Resolution: 1280x720
Bitrate: 2-4 Mbps
Max 25MB free, 100MB Nitro
最良の結果を得るためのヒント
- 1Expect significant file size reduction from MPEG-1 and MPEG-2 sources
- 2Consider deinterlacing for better appearance on modern displays
- 3DVD-quality MPEG-2 converts excellently—H.264 is simply more efficient
- 4Keep original MPEG if archival fidelity matters to you
- 5Batch convert entire video archives for comprehensive modernization
関連する変換
MPEG to MP4 conversion modernizes classic video formats for today's devices and platforms. Whether from VCDs, DVDs, or broadcast captures, your MPEG content becomes universally playable in dramatically smaller files.
MPEGとMP4の比較
| 特徴 | MPEG | MP4 |
|---|---|---|
| 正式名称 | Moving Picture Experts Group | MPEG-4 Part 14 |
| 拡張子 | .mpeg | .mp4 |