A few questions about my new Z9, won't play certain .avi files, .m3u files, how to change clock?

Hello everyone,
I bought my Z9 a couple of months ago, really enjoying it but have a couple of questions:
1. I ran into a problem when trying to play certain .AVI files, I get a message saying "can't play video".
The same files always ran fine on my old Popcorn Hour C 200 and they play fine on my PC. Any idea
why they're not playing on my Z9? I've included below the output from the mediainfo app I ran for 2 files.
The first file would not open but the 2nd file played fine. Should I install and other media player,
something like VLC media player for android? Which leads me to question 2.

2. How do I install other apps on my Z9? I tried using the "APKinstaller" at the by starting it and selecting
"Web installation" and another window pops up displaying the image of a computer screen and text
on the bottom that reads "please enter the address of the remote install applications on your computer"
and in blue text below that the following URL "HTTP://192.168.1.15.18888". Problem is, this window
seems to be frozen, there's no way to change the current text or add new text. I tried using the mouse
pointer to click and double-click the URL and the green box in the center of the window but
nothing changed.

3. Does the Z9 support .m3u playlists? I have a few of these playlists which I created using Winamp
on my PC. They always played fine on my PC and on my PCH C 200 but will not play on my Z9. If
it doesn't support .m3u, any suggestions and I what I can use to make playlists?

4. How can I change the time that's displayed on the front of the Z9? I tried several times changing the time
in the settings and while I'm able to go in and physically change it, by the time I back out of settings,
the time changes back to where it was. On this topic, is there a way to select my own time zone?
When I tried to change the time zone, I can't find it, I only see time zones such as "Taipei".

5. Can the HDMI input be used for any type of recording? For example, can I record output from my
Amazon fire stick using the the Z9s HDMI input? I saw on a YouTube video that recording from this
HDMI input could be done but only for the Z9s sold in certain countries, but probably not the US.

Those are all the questions I have for now, I'm sure I'll have others as I use the Z9
more but so far, it's a great media player with excellent picture quality.

Thanks in advance for any information you all can provide.

Below is the info on the .AVI files I mentioned earlier.

I get a "can't play video" error message when I try to play this video: (and many other.AVI files)
General
Complete name : K:\01 Video - Movies & TV\Formula 1 Stuff on K drive\Formula 1 Racing - 1961 - 2003 Full Seasons & Reviews\F1 1978 - Full Season\1978 - 04 - USA West.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 529 MiB
Duration : 1h 56mn
Overall bit rate : 632 Kbps
Writing library : VirtualDub build 18160/release

Video
ID : 0
Format : MPEG-4 Visual
Format settings, BVOP : 1
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Muxing mode : Packed bitstream
Codec ID : DX50
Codec ID/Hint : DivX 5
Duration : 1h 56mn
Bit rate : 495 Kbps
Width : 352 pixels
Height : 256 pixels
Display aspect ratio : 1.375
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.220
Stream size : 413 MiB (78%)
Writing library : DivX 5.1.1 (Maupiti) (UTC 2003-11-19)

Audio
ID : 1
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 3
Codec ID : 55
Codec ID/Hint : MP3
Duration : 1h 56mn
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 107 MiB (20%)
Alignment : Split accross interleaves
Interleave, duration : 40 ms (1.00 video frame)
Interleave, preload duration : 500 ms


This .AVI file plays fine;
General
Complete name : K:\01 Video - Movies & TV\Formula 1 Stuff on K drive\Formula 1 Racing - 1961 - 2003 Full Seasons & Reviews\F1 1985 - Full Season\1985 - 11 - Netherlands - ORF.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 1.64 GiB
Duration : 1h 57mn
Overall bit rate : 2 003 Kbps
Writing application : VirtualDubMod 1.5.10.2 (build 2540/release)
Writing library : VirtualDubMod build 2540/release

Video
ID : 0
Format : MPEG-4 Visual
Format profile : Advanced Simple@L5
Format settings, BVOP : 1
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : XVID
Codec ID/Hint : XviD
Duration : 1h 57mn
Bit rate : 1 801 Kbps
Width : 704 pixels
Height : 544 pixels
Display aspect ratio : 1.294
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.188
Stream size : 1.48 GiB (90%)
Writing library : XviD 1.2.0.dev47 (UTC 2006-11-01)

Audio
ID : 1
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Codec ID : 2000
Duration : 1h 57mn
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 161 MiB (10%)
Alignment : Split accross interleaves
Interleave, duration : 40 ms (1.00 video frame)
Interleave, preload duration : 500 ms