What is the difference between M2ts and Mts?

[jbitakis]

I have video recorded with a Sony that is 1920x1080i 29fps and when I download it into the computer it is AVCHD (.Mts) file, & then I have video recorded with a Panasonic that is 1920x1080p 59fps and when I download it into the computer it is M2TS (.M2ts) file.
My question is: What is the difference? When I used Multiavchd and Imgburn to place both of these video on a BD-R, the Sony AVCHD (.Mts) played FLAWLESSLY on my PS3. The Panasonic M2TS (.M2ts) played fair, but with some stutters.
Is it the 1080p 59fps that is causing the stutters OR the type of file-M2ts, that is causing the problem?
Just wondering what the real difference is between the m2ts vs. mts file?
I have placed both video below from mediainfo.

I have video here that I recorded with a Sony HD cam.

General
ID : 0 (0x0)
Complete name : D:\2012-10-24\20121024111411.MTS
Format : BDAV
Format/Info : Blu-ray Video
File size : 1.03 MiB
Duration : 450ms
Overall bit rate mode : Variable
Overall bit rate : 18.0 Mbps
Maximum Overall bit rate : 18.0 Mbps
Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : 27
Duration : 434ms
Bit rate mode : Variable
Maximum bit rate : 16.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 512ms
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -67ms
Stream size : 28.0 KiB (3%)
Text
ID : 4608 (0x1200)
Menu ID : 1 (0x1)
Format : PGS
Codec ID : 144
Duration : 26h 30mn
Delay relative to video : -67ms


Here is video I recorded with a Panasonic HD cam.


General
ID : 1 (0x1)
Complete name : C:\Users\Daddy's HP Laptop\Videos\10-26-2011\10-26-2011_102532.m2ts
Format : BDAV
Format/Info : Blu-ray Video
File size : 84.7 MiB
Duration : 26s 980ms
Overall bit rate mode : Variable
Overall bit rate : 26.3 Mbps
Maximum Overall bit rate : 28.0 Mbps
Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=3, N=30
Codec ID : 27
Duration : 26s 994ms
Bit rate mode : Variable
Bit rate : 25.0 Mbps
Maximum bit rate : 26.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 59.940 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.201
Stream size : 80.5 MiB (95%)
Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 27s 40ms
Bit rate mode : Constant
Bit rate : 256 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -34ms
Stream size : 845 KiB (1%)
Text
ID : 4608 (0x1200)
Menu ID : 1 (0x1)
Format : PGS
Codec ID : 144
Duration : 26s 462ms
Delay relative to video : -34ms

[jagabo]

Is it the 1080p 59fps that is causing the stutters

Yes. You can verify this using tsMuxer to remux. 1080p60 is fairly new. Very few players can handle it.