Changing Containers from MTS to MKV or MP4

[loopback]

I have many mts files that I need to change the container to another more user friendly type. I know that MTS can be converted to MKV but not sure if my mediatype encoding and sound supports that. Here is my mediainfo output for a sample file. I am seeking suggestions for container type to convert to and any recommendations on best practices.

General
ID : 0 (0x0)
Complete name : Y:\Gallery - \Video\2017-08-23 Michelle\Video Right\Michelle.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 3.89 GiB
Duration : 32 min 26 s
Overall bit rate mode : Variable
Overall bit rate : 17.2 Mb/s
Maximum Overall bit rate : 18.0 Mb/s
Recorded date : 2017-08-22 23:34:06-06:00
Writing application : JVC

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 2 frames
Format settings, GOP : M=3, N=15
Codec ID : 27
Duration : 32 min 26 s
Bit rate mode : Variable
Bit rate : 16.2 Mb/s
Maximum bit rate : 17.0 Mb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan type, store method : Separated fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.261
Stream size : 3.68 GiB (94%)

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : 129
Duration : 32 min 26 s
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Delay relative to video : -481 ms
Stream size : 59.4 MiB (1%)
Service kind : Complete Main

Text
ID : 4608 (0x1200)
Menu ID : 1 (0x1)
Format : PGS
Codec ID : 144
Duration : 32 min 26 s
Delay relative to video : 67 ms

[jagabo]

AVC and AC3 will be fine in MKV or MP4 (may programs will use the extension M4V rather than MP4). The new files will be a little smaller because MKV and MP4 have less overhead than MTS and other transport streams. Try AviDemux (GUI) or ffmpeg (command line).

[ProWo]

As jagabo stated avc+ac3 is fine in both mkv and mp4 container, but pgs subtitle is compatible with mkv only, not with mp4.
For an easy container change use clever Ffmpeg-GUI, multiplexing section.

[johns0]

I find mp4 getting more outdated than mkv,kinda like flac replacing mp3 even though most people won't hear the difference between mp3 and flac,just mp4 isn't as easy to use as mkv for adding subs and such.

[loopback]

Thank all of you for your input and recommendations. I will try clever Ffmpeg-GUI, I was not aware of it although in the past I had used ffmped to do some simple cleaning, having a gui to simplify will be of great help.