ICO to M2TS Converter
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Supports: ICO
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Need help?ICO to M2TS Converter
ICO is Microsoft's icon container: a single file holding one or more small bitmaps that Windows picks from depending on where the icon is displayed. M2TS is the opposite end of the scale — the filename extension used for the Blu-ray Disc Audio-Visual (BDAV) MPEG-2 Transport Stream, the container that carries high-definition video on Blu-ray discs and AVCHD camcorders. Converting between them produces a short, silent clip that holds the icon on screen, which is occasionally what a disc-authoring or broadcast-style pipeline demands. This page documents both formats and exactly what our converter writes.
ICO Format at a Glance
| Property | Value |
|---|---|
| Owner | Microsoft, as the Windows icon and cursor resource format |
| Structure | An ICONDIR header followed by one ICONDIRENTRY per stored image; a type field of 1 marks an icon, 2 a cursor |
| Images per file | One or more, at different sizes and colour depths |
| Maximum size per entry | 256 x 256 px — width and height are each stored in a single byte, where 0 is interpreted as 256 |
| Colour depth | 4-bit through 32-bit; the 32-bit form gained an 8-bit alpha channel in Windows XP |
| Payload | Uncompressed device-independent bitmap, or a PNG frame — PNG storage was added in Windows Vista and is what made 256 px icons practical |
| Sizes in current Windows | 16, 20, 24, 32, 40, 48, 64 and 256 pixels |
| Metadata | Per-entry size, colour count, planes, bit depth and data offset only — no Exif, no colour profile |
| Best for | Application, shortcut and taskbar icons, and website favicons |
M2TS Format at a Glance
| Property | Value |
|---|---|
| Standard | BDAV MPEG-2 Transport Stream, built on MPEG-2 Systems (ISO/IEC 13818-1, ITU-T H.222.0) |
| Packet layout on Blu-ray | Standard 188-byte transport packets with four extra bytes of arrival-timing information prepended |
| What we write | A standard MPEG-2 transport stream under the .m2ts name, without the Blu-ray timing prefix |
| Used by | Blu-ray Disc, Ultra HD Blu-ray, and AVCHD camcorders |
| Relationship to .MTS | The same container; camcorders write it under the 8.3 filename convention as .MTS, discs use the long name .m2ts |
| Video codecs on Blu-ray | H.262/MPEG-2 Part 2, H.264/MPEG-4 AVC, or SMPTE VC-1 |
| Audio codecs on Blu-ray | Dolby Digital, DTS or Linear PCM are mandatory; Dolby Digital Plus, Dolby TrueHD, DTS-HD High Resolution and DTS-HD Master Audio are optional |
| AVCHD restriction | Tighter still — H.264 video only, with Dolby Digital (AC-3) or LPCM audio |
| Our default output codec | H.264; DivX, H.265, MPEG-1, MPEG-2, MPEG-4 and Xvid are also selectable |
| Audio in our output | None — an ICO carries no audio stream, so no audio track is created |
| Best for | Feeding disc-authoring and HD playback chains; a poor general-purpose delivery format |
How to Convert ICO to M2TS
- Upload Your ICO File: Drag and drop the
.icoonto the page or click "+ Add Files". Several icons can be queued and processed together. - Set the Duration: Under Advanced Options the Image Duration control is preselected at "5 seconds per frame"; the dropdown ranges from a single frame up to 10 seconds per frame and defines the clip's length.
- Pick Video resolution and Background Color: Video resolution begins on "Keep original" — Fixed Resolutions, Preset Resolutions, and an exact Width x Height are available if you need an HD frame. Background Color (White by default) is composited behind transparent pixels and fills the letterbox bars.
- Convert and Download: Click Convert to get your
.m2ts. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.
Frequently Asked Questions
Is the M2TS I download a Blu-ray disc image?
No. A .m2ts is one stream file. A real disc is a BDMV directory tree — STREAM, CLIPINF, PLAYLIST and index files — and authoring software builds that structure around your streams. Handing a loose .m2ts to a burner produces a data disc, not a playable Blu-ray.
Does the output meet the Blu-ray specification?
Partly, and you should not assume it does. The default H.264 video is within spec and MPEG-2 is selectable if you need the older option, but three things fall short: Blu-ray mandates specific resolutions and frame rates, it requires Dolby Digital, DTS or LPCM audio where this conversion has no audio at all, and we write a standard transport stream rather than the Blu-ray variant that prepends four timing bytes to each packet. The result is a valid stream that players will read, not a validated Blu-ray asset. Use dedicated authoring software when compliance matters.
Why is my M2TS silent?
Because there is nothing to encode. An ICO file contains only image data — a directory of bitmaps — with no audio stream anywhere in it. Rather than pad the file with a silent track, the converter writes video only. Any editor can add audio afterwards.
What is the difference between .m2ts and .mts?
Filename convention, not content. Both name the same BDAV transport stream. AVCHD camcorders record onto media using the old 8.3 naming rules and produce .MTS; Blu-ray discs use long filenames and produce .m2ts. Renaming one to the other does not change the bytes, and our ICO to MTS converter writes the same stream under the other extension.
Why does the icon look so soft at 1080p?
Because a standard ICO entry cannot exceed 256 x 256 pixels, and most icons are far smaller. Scaling a 48-pixel icon to a 1920 x 1080 frame is roughly a 22-fold enlargement per axis; the interpolation has no additional detail to draw on. Keeping Video resolution on "Keep original" avoids this entirely, at the cost of a very small frame.
Which image from a multi-size ICO is used?
The first entry in the icon's directory. The decoder reads entry zero rather than hunting for the highest resolution, and authoring tools disagree about ordering — some write 256 x 256 first, others start with 16 x 16. If the clip is unexpectedly tiny, that is the reason; re-export the icon containing only the size you want.
Will VLC, my TV, or my Blu-ray player open this file?
VLC, mpv and most desktop editors read it without trouble. Set-top players and TVs are far pickier: they expect broadcast-legal resolutions and frame rates, and this clip is encoded at one frame per second because a still image needs no more. If a hardware player refuses it, that low frame rate is the usual reason.
Should I convert to M2TS at all?
Usually not. M2TS earns its place inside the Blu-ray and AVCHD world and is awkward everywhere else. For sharing, editing or embedding, ICO to MP4 produces an H.264 file that browsers, phones and editors all accept. If you only want a picture, ICO to PNG keeps the artwork lossless and preserves transparency.
What happens to my file after conversion?
It is uploaded over an encrypted connection, converted on our servers, and both the upload and the finished .m2ts are deleted automatically after a few hours. No account is required, nothing is watermarked, and files are never shared or made public.