Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errors“Invalid media type” usually means either that software cannot parse a media-type value, or that a server does not support the format sent with a request. The phrase is not one universal HTTP error code. If an HTTP endpoint rejects request content because of its format, it may return 415 Unsupported Media Type; a framework may instead report a parser exception. The distinction matters: malformed syntax, an unsupported format, and a body the server cannot process are different problems.
What is a media type?
A media type identifies the format of a representation and how it should be processed. In HTTP, Content-Type describes the representation being sent, while Accept indicates which response formats the client can receive. The standard form is type/subtype, optionally followed by semicolon-separated parameters.
As an Amazon Associate I earn from qualifying purchases.
Examples include application/json, text/html, and text/html; charset=UTF-8. The type and subtype are case-insensitive; parameter values may have their own rules. RFC 9110, published in June 2022, defines the HTTP media-type syntax and header roles: RFC 9110.
Does “invalid” mean malformed or unsupported?
Not necessarily. A value can be syntactically malformed, or it can be valid but unsupported by a particular endpoint. An error message alone may not tell you which case applies; check whether it came from a parser or from an HTTP response.
#1 Best Overall
- MAKE YOUR TV SMARTER - Enhance any TV with the ability to play videos, music, and photo slideshows from a USB drive or MicroSD Card! It’s so simple and intuitive - anyone can use it. The Micca 4K is amazingly compact and affordable, get one for each TV in the house!
- PLAYS 4K ULTRA-HD VIDEOS - Works with TVs old and new! Smoothly plays videos up to 4096x2304@30fps over UHD 4K/60Hz HDMI output. Sharp and clear video and audio in pure digital format, compatible with 4K and 1080p TVs, projectors, and monitor displays. Composite AV output for use with analog TVs or for sending sound to a stereo system.
- DUAL USB AND MICRO SD READER - Play media files from USB flash drives and USB hard drives up to 8TB, or microSD cards up to 1TB. Supports FAT/FAT32, exFAT and NTFS file systems. Compatible with wireless air mouse remotes for non-line-of-sight control so that the player can be hidden away!
- SIMPLE DIGITAL SIGNAGE - Automatic video playback with endless repeat and looping, and the ability to resume from the last stopping point. Configurable 90/180/270 degree video output rotation. Great for digital signage applications such as restaurant menu boards, lobby welcome videos, art and museum installations.
- MEDIA FORMAT SUPPORT - Videos: MKV, MP4/M4V, AVI, MOV, MPG, VOB, M2TS, TS files encoded with H.265/HEVC, H.264/AVC, MPEG1/2/4, VC1, up to 4096x2304, 30fps, 200mbps. Subtitles: SRT, PGS, IDX+SUB. Music: MP3, WAV, FLAC. Photos: JPG, GIF, BMP, PNG
- Malformed value: The parser cannot interpret the type/subtype or its parameters. Check for a missing slash, misplaced punctuation, or incorrectly formatted parameters.
- Unsupported format: The value is interpretable, but the server does not accept that content format for the requested method and resource.
Exact parsing behavior depends on the implementation. Go’s mime.ParseMediaType, for example, normalizes the base media type to lowercase and reports errors for invalid syntax or malformed optional parameters. Spring Framework documents InvalidMediaTypeException for an invalid media-type specification string: Go mime package documentation and Spring Framework 6.2.18 API documentation.
What does HTTP 415 mean?
415 Unsupported Media Type is an HTTP response status, not the name of a parser exception. RFC 9110 says it means the origin server refuses a request because its content is in a format unsupported by the method on the target resource.
Rank #2
- 【Mini Portable Media player】-- Fits into the palm of your hand, It is a perfect travel partner for those short on space and sockets. Also compact and easy multifunction HD media player for office work and home entertainment;Aluminum alloy material, not easy to damage during carrying
- 【1080P MP4 Player】-- Full HD 1080p@60Hz supports most video decoding formats: RM, RMVB, AVI, DIVX, MKV, MOV, HD MOV, MP4, M4V, PMP, AVC, FLV, VOB, MPG, DAT, MPEG, TS, TP, M2TS, WMV, (H.264,H.263,WMV9/VC-1,MPEG1/2/4),Not support VPR files. Note: Please use our 4K player to play some videos taken with smart phones, ASIN: B07WPY8VKL
- 【HDMI or AV Output】-- Supports 1080p HDMI output, allowing you to transmit crisp, clear video and audio in a pure digital format to an HDTV; it also supports composite AV output for use with analog TVs. An analog AV cable is included. While using HDMI video output, you can also connect external speakers via the AV output. However, video cannot be output via both AV and HDMI at the same time.
- 【USB 2.0/3.0 Compability】-- Drive external USB 2.0/3.0 storage devices such as USB flash(up to 512G)/SD card(up to 128G) and hard drive(partition should be MBR, up to 8TB), you can also delete or copy files in the USB drive(FAT or FA32) directly, Also plays subtitle files as well as loop videos
- 【Support Multiple Formats of Files and Playback Modes&Multi-functional Remote Control】-- Supports most video, audio, and image formats on the market, supports random playback of video and image modes, and supports loop playback. Supports repeat, zoom, fast forward, fast rewind, rotation, breakpoint playback method, start from scratch playback method and time selection playback method. It is also equipped with a convenient remote control for easy navigation of menu screens (ASIN: B0C9PZPFL8)
A 415 does not prove that the Content-Type header is misspelled. RFC 9110 says rejection may be caused by the indicated Content-Type, the request’s Content-Encoding, or inspection of the data itself. The response may use Accept to indicate acceptable media types when the media type is the issue, or Accept-Encoding to identify acceptable content codings when coding is the issue.
A service’s exact response behavior varies. It might return 415 for a malformed value, an unsupported but valid format, an unsupported content coding, or a body that fails an inspection. If the server understands the content type and the request syntax is correct but cannot process the instructions, RFC 9110 distinguishes that case as 422 Unprocessable Content.
Rank #3
- MAKE YOUR TV SMARTER - Enhance any TV with the ability to play videos, music, and photo slideshows from a USB drive or MicroSD Card! It’s so simple and intuitive - anyone can use it. The Micca G3 is amazingly compact and affordable, get one for each TV in the house!
- PLAYS 2K QUAD-HD VIDEOS - Works with TVs old and new! Smoothly plays videos up to 2560x1440@60fps, upscaled to UHD 4K/60Hz HDMI output. Sharp and clear video and audio in pure digital format, compatible with 4K and 1080p TVs, projectors, and monitor displays. Composite AV output for use with analog TVs or for sending sound to a stereo system.
- DUAL USB AND MICRO SD READER - Play media files from USB flash drives and USB hard drives up to 8TB, or microSD cards up to 1TB. Supports FAT/FAT32, exFAT and NTFS file systems. Compatible with wireless air mouse remotes for non-line-of-sight control so that the player can be hidden away!
- SIMPLE DIGITAL SIGNAGE - Automatic video playback with endless repeat and looping, and the ability to resume from the last stopping point. Configurable 90/180/270 degree video output rotation. Great for digital signage applications such as restaurant menu boards, lobby welcome videos, art and museum installations.
- MEDIA FORMAT SUPPORT - Videos: MKV, MP4/M4V, AVI, MOV, MPG, VOB, M2TS, TS files encoded with H.265/HEVC, H.264/AVC, MPEG1/2/4, VC1, up to 2560x1440, 60fps, 100mbps. Subtitles: SRT, PGS, IDX+SUB. Music: MP3, WAV, FLAC. Photos: JPG, GIF, BMP, PNG
Content-Type or Accept: which should you check?
These headers concern opposite directions of the exchange, so changing the wrong one can leave the problem untouched.
| Header or status | What it concerns | What to check |
|---|---|---|
Content-Type |
The format of the representation sent in the request | Whether the value matches both the actual request body and the endpoint’s accepted request types |
Accept |
The response format the client wants | Whether the server can provide one of the requested response types |
415 Unsupported Media Type |
The server rejects request content, potentially because of media type, content coding, or inspected data | The endpoint’s accepted request formats and coding requirements, as well as the response headers |
406 Not Acceptable |
The server cannot provide a response type requested through Accept in some framework behavior |
The client’s response-format preferences |
For example, Cornice 2.0.1 documents 415 for failed request Content-Type validation and 406 when its service cannot provide a type requested through Accept: Cornice 2.0.1 documentation. Other services may differ.
Rank #4
- 【SIMPLE, POWERFUL, COMPACT】- Easily play videos, photos, and music files from USB drives, hard drives, and SD cards. Simple and intuitive to use with no complicated settings. Takes up very little space - it’s smaller than a deck of playing cards!
- 【4K/UHD VIDEO PLAYBACK】- Stunning HDMI video quality up to 2160p/60Hz with support for the latest video formats such as H.265/HEVC. Feeds digital surround sound to home theater receivers for a cinema-like movie experience. Includes analog AV output for connecting to an older TV or for sending audio to a stereo system.
- 【READS USB DRIVES AND SD CARDS】- Reads USB flash drives and hard drives up to 8TB and SD cards up to 1TB. Supports FAT32, exFAT, and NTFS file systems. Automatic playback, continuous looping and repeat, and the ability to resume video playback from the last stop point.
- 【TRIGGER SENSOR INPUT】- Ability to loop one video continuously and play a different video when triggered by an optional push-button or motion sensor. Build an interactive digital signage display, art gallery or museum on-demand video player, or a Halloween special effect in just a few steps. Push-button and motion sensors sold separately.
- 【MEDIA FORMAT SUPPORT】 - Video: MP4, MKV, AVI, TS/TP, MOV, VOB, and M2TS files using H.265/HEVC, H.264/AVC, VC1, or MPEG2/4 codecs, up to 4096x2304p@30fps, 10-bit color, and 200mbps. Photos: JPG, JPEG, BMP, GIF (non-animated), PNG. Music: MP3, WMA, OGG, FLAC, APE, AAC
How to troubleshoot an invalid media type
- Identify where the message appears. A framework exception such as
InvalidMediaTypeExceptionpoints to parsing or framework validation. An HTTP 415 is a response from an endpoint. Record the status and any response headers. - Check the request’s
Content-Type. Compare the complete value—including the subtype and parameters—with the API documentation for that method and resource. Do not assume that a format accepted by one endpoint is accepted by another. - Make the header match the body. If the body is JSON and the endpoint expects JSON,
application/jsonis a common value. The endpoint’s documented requirements take precedence; changing a header without changing the body does not convert the content. - For parser errors, inspect the syntax. Verify the type/subtype slash and check parameter separators and values. Use the parser’s own error text and documentation to determine its accepted syntax.
- For a 415, check coding as well as media type. Look for a request
Content-Encodingthe endpoint may not support. If provided, use responseAcceptorAccept-Encodingto understand acceptable media types or codings. - If the requested response format is the issue, inspect
Accept. Do not change the request body’sContent-Typeto solve a response-negotiation problem.
How to tell which kind of problem you have
- Parser or framework error, before an HTTP response: investigate whether the media-type string or its parameters are malformed according to that implementation.
- 415 response: investigate whether the request format, content coding, or inspected body is unsupported for that endpoint.
- 406 response: investigate whether the response format requested with
Acceptis available. - 422 response: the server may have understood the content type and request syntax but been unable to process the instructions.
These clues narrow the search; the endpoint’s documentation and the actual response determine the cause.
Recommended Free Tools
Quick Recap
Best Value
- 【SIMPLE, POWERFUL, COMPACT】- Easily play videos, photos, and music files from USB drives, hard drives, and SD cards. Simple and intuitive to use with no complicated settings. Takes up very little space - it’s smaller than a deck of playing cards!
- 【FULL-HD VIDEO PLAYBACK】- Stunning HDMI video quality up to 1080p/60Hz with support for the latest video formats such as H.265/HEVC. Feeds digital surround sound to home theater receivers for a cinema-like movie experience. Includes analog AV output for connecting to an older TV or for sending audio to a stereo system.
- 【READS USB DRIVES AND SD CARDS】- Reads USB flash drives and hard drives up to 8TB and SD cards up to 1TB. Supports FAT32, exFAT, and NTFS file systems. Automatic playback, continuous looping and repeat, and the ability to resume video playback from the last stop point.
- 【TRIGGER SENSOR INPUT】- Ability to loop one video continuously and play a different video when triggered by an optional push-button or motion sensor. Build an interactive digital signage display, art gallery or museum on-demand video player, or a Halloween special effect in just a few steps. Push-button and motion sensors sold separately.
- 【MEDIA FORMAT SUPPORT】 - Video: MP4, MKV, AVI, TS/TP, MOV, VOB, and M2TS files using H.265/HEVC, H.264/AVC, VC1, or MPEG2/4 codecs, up to 1920x1080p@60fps, 10-bit color, and 100mbps. Photos: JPG, JPEG, BMP, GIF (non-animated), PNG. Music: MP3, WMA, OGG, FLAC, APE, AAC
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
