mp4 not m4v

HandBrake for Windows support
Forum rules
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
Post Reply
New User
Posts: 1
Joined: Tue Nov 10, 2020 8:27 pm

mp4 not m4v

Post by mlf »

Description of problem or question:
I need to downsize an mp4 file. Handbrake makes them into m4v's which is not accepted into the system I'm uploading to. How to I set it to mp4?

Steps to reproduce the problem (If Applicable):

HandBrake version (e.g., 1.0.0):


Operating system and version (e.g., Ubuntu 16.04 LTS, macOS 10.13 High Sierra, Windows 10 Creators Update):

Windows 10

HandBrake Activity Log ***required*** (see How-to get an activity log)

Code: Select all

HandBrake 1.3.3 (2020061300)
OS: Microsoft Windows NT 10.0.17763.0
CPU: Intel(R) Core(TM) i5-8350U CPU @ 1.70GHz
Ram: 8051 MB, 
GPU Information:
  Intel(R) UHD Graphics 620 -
Screen: 1920x1080
Temp Dir: C:\Users\pp219258\AppData\Local\Temp\
Install Dir: C:\Program Files\HandBrake
Data Dir: C:\Users\pp219258\AppData\Roaming\HandBrake


[15:29:39] Compile-time hardening features are enabled
Cannot load nvEncodeAPI64.dll
[15:29:53] hb_init: starting libhb thread

 # Starting Scan ...

[15:29:53] CPU: Intel(R) Core(TM) i5-8350U CPU @ 1.70GHz
[15:29:53]  - Intel microarchitecture Kaby Lake
[15:29:53]  - logical processor count: 8
[15:29:53] Intel Quick Sync Video support: yes
[15:29:53]  - Intel Media SDK hardware: API 1.30 (minimum: 1.3)
[15:29:53]  - H.264 encoder: yes
[15:29:53]     - preferred implementation: hardware (any) via D3D11
[15:29:53]     - capabilities (hardware):  breftype icq+la+i+downs vsinfo opt1 opt2+mbbrc+extbrc+trellis+ib_adapt+nmpslice
[15:29:53]  - H.265 encoder: yes (8bit: yes, 10bit: yes)
[15:29:53]     - preferred implementation: hardware (any) via D3D11
[15:29:53]     - capabilities (hardware):  bpyramid icq vsinfo opt1
[15:29:53] hb_scan: path=C:\Users\pp219258\OneDrive - West Corporation\Documents\CLIENTS\Dell\VIDEOS\encoded\tiny\Bailamos-2.m4v, title_index=0
udfread ERROR: ECMA 167 Volume Recognition failed
src/libbluray/disc/disc.c:323: failed opening UDF image C:\Users\pp219258\OneDrive - West Corporation\Documents\CLIENTS\Dell\VIDEOS\encoded\tiny\Bailamos-2.m4v
src/libbluray/disc/disc.c:424: error opening file BDMV\index.bdmv
src/libbluray/disc/disc.c:424: error opening file BDMV\BACKUP\index.bdmv
src/libbluray/bluray.c:2585: nav_get_title_list(C:\Users\pp219258\OneDrive - West Corporation\Documents\CLIENTS\Dell\VIDEOS\encoded\tiny\Bailamos-2.m4v\) failed
[15:29:53] bd: not a bd - trying as a stream/file instead
libdvdnav: Using dvdnav version 6.0.1
libdvdread: Encrypted DVD support unavailable.
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdread:DVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: failed to read VIDEO_TS.IFO
[15:29:53] dvd: not a dvd - trying as a stream/file instead
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\pp219258\OneDrive - West Corporation\Documents\CLIENTS\Dell\VIDEOS\encoded\tiny\Bailamos-2.m4v':
    major_brand     : mp42
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 2020-11-10T20:24:05.000000Z
    encoder         : HandBrake 1.3.3 2020061300
  Duration: 00:20:12.78, start: 0.000000, bitrate: 12549 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 960x540 [SAR 1:1 DAR 16:9], 12265 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
      creation_time   : 2020-11-10T20:24:05.000000Z
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 276 kb/s (default)
      creation_time   : 2020-11-10T20:24:05.000000Z
      handler_name    : Stereo
      title           : Stereo
[15:29:53] scan: decoding previews for title 1
[15:29:53] scan: audio 0x1: aac, rate=48000Hz, bitrate=276871 English (AAC LC) (2.0 ch) (276 kbps)
[15:29:53] scan: 10 previews, 960x540, 29.970 fps, autocrop = 0/0/0/0, aspect 16:9, PAR 1:1
[15:29:53] scan: supported video decoders: avcodec qsv
[15:29:53] libhb: scan thread found 1 valid title(s)

 # Processing Scan Information ...

 # Scan Finished ...

Veteran User
Posts: 3843
Joined: Tue Aug 27, 2013 6:39 am

Re: mp4 not m4v

Post by Woodstock »

In Windows Explorer, click on the file, highlight the extension, and type MP4 and Enter. Answer the prompt about changing extension with Yes.

For future encodes, go to Tools->Preferences->Output Files and select "Always use MP4" as the MP4 extension.
Post Reply