Fixing Problems With The NETAC A100 Car MP3 / WMA Player 
(may also help with other WMA players)

This is basically a neat little player (it is a USB memory stick with rechargeable battery that also plays MP3 and WMA files through headphones or FM radio, in linear or shuffled order, plus other functions) and excellent value for money at less than £50 (from netac.tv)  for the 2GB version. However, it has exasperating problems that you can overcome if you know the information provided below. It also has one of the worst set of instructions I have ever encountered, which is where many of the problems really lie, and a non-responsive support site.

Note: The information provided on this page was last updated on 5 March 2007, and relates to firmware version: 001.000.005. A more up to date firmware version may fix some of the problems reported here.

 

I use the player to play WMA files in the car and also on the living room hi-fi (through its built in FM transmitter, now legal in the UK), as well as through headphones. The ear-bud headset works fine as an aerial for transmitting FM to a car radio (or any FM radio) or to a hi-fi stereo FM tuner/receiver at home (the headset wires need to be underneath or very close to the tuner/receiver in the latter case, if it is plugged into an external FM aerial). An optional antenna is available which presumably replaces the headset for transmission, but I don’t need one. It also has an FM receiver built in, but using the headset as an aerial it doesn’t pick up anything much in a reasonable reception area except static. You can also store non-music files, using the player as a simple portable USB memory stick – these don’t affect the playback (but their addition may possibly trigger the "deleted files" problem, see below). And finally it is a voice recorder, a feature I have not used yet.

The big problems are:

  1. You load some WMA files, and get an error message on the player >NO FILES< which is obviously wrong, as you can see the files are still there using Windows Explorer. See below for how to fix this.

  2. You may also get the same message >NO FILES< for a different reason (see below).

  3. For no apparent reason the player will suddenly start deleting all its files every time you try to start playing music, and you will get that exasperating message >NO FILES< yet again, only this time it means what it says - it really has deleted your files. Actually, if you connect the player to your computer and examine it with Windows Explorer and check the "Properties", the deleted files are still taking up space on the player but are now totally inaccessible. When this happens, don’t try to re-format the disk in the usual way, or the player won’t even start up properly when you try to play music. Instead re-load the firmware, it is actually quite easy (see below). 

For what it's worth, my guess is that problem 3.  may be caused if you add or delete files after you have started playing any tracks. My workaround to this problem is the tip described here.

The lesser problems are:

  1. The shuffled play list occasionally has a sequence of tracks that isn't shuffled. See below.

  2. The manual isn't very helpful in places, to put it mildly. A few hints on minor difficulties caused by this are also provided below.

CURING THE FIRST “NO FILES” PROBLEM – PROTECTED WMA FILES

This is due to some or all WMA files on the player being protected. Learn about this topic using the Help information on Windows Media Player. 

On Windows XP you can see whether a file is protected by hovering the mouse over the WMA file’s icon:

  • If you see “Protected: No” in the pop up you are all right. You can copy these files to your player using Windows Explorer using drag and drop etc. in the usual way. 

  • If you see “Protected: Yes” then you may well be able to copy these files using the Windows Media Player “Sync” operation. This copies the protected files to a portable player and removes protection on that player (and you can re-arrange the files once they have been copied to other folders if you want). 

The time spent researching the Windows Media Player Help files will save you lots of time later!

Copying files using Windows Explorer sounds simple (and is). But WMA files created using Windows Media Player often have lots of other hidden files that go with them. You need to see these files if you don’t want to clutter up your portable player memory, so that you can avoid copying them. In Windows XP, you need to uncheck the box “Hide Protected Operating System Files” in the Windows Explorer Tools Menus (Folder Options, View…). This is a little dangerous, so check the box again later when you have finished copying, so that you don’t inadvertently delete operating system files somewhere else where they are really needed.

CURING THE SECOND “NO FILES” PROBLEM – TOO MANY FOLDERS

This happens because NETAC don’t tell you that there is a limit on the number of folders on the player. In my case I have three top level folders, FM, VOICE, and MUSIC (the last of which I created myself). I create all the music folders in the MUSIC folder. You can only have 47 folders there, so I guess there may be an overall limit of 50 folders on the player (see this discussion thread). If you exceed this you get >NO FILES< again, or if the folders are more deeply nested you may not get this message but instead you may find that the player doesn't recognize all of your tracks.

If you set up your initial play list on the player and then find that you have more than 50 folders in total, it is easy to re-organize the files into fewer folders using Windows Explorer. Having done this, take a copy of the result (probably somewhere on your hard drive) so that you can easily re-load the player when you want to.

There is also a stated limit of 480 on the total number of music/voice tracks (or maybe files) on the player – you will eventually find this fact in the manual. I haven’t reached this limit yet. The manual doesn’t currently make it clear whether the same limit applies to a 2GB player as it does to a 1GB player… I wouldn’t bet against it! If you exceed this limit you will probably get >NO FILES< again.

There may be other hidden limits… I'll update this if I find any.

RE-LOADING AND UPDATING THE FIRMWARE

You need to learn how to do this, in case your player gets messed up, and mine certainly has done from time to time. Go to www.netac.com and download the tools for your player (you apparently only need to do this once, see below). This will turn out to be a file with a .RAR extension, which you may not have met before. It’s another kind of zip file, and WinZip won’t work with it. To unzip it when you have downloaded it get a free evaluation copy of the WinRAR program from:

www.rarlab.com/download.htm

I chose WinRAR version 3.62 from the large number of choices at that site.

Having installed WinRAR and used it to unzip the .RAR file, install the tools using the unzipped setup.exe file, and you now have a program ("NETAC MP3 Firmware Download" - called something different in the manual) that will repair (and maybe update) the firmware on your player, and also format the drive properly at the same time if you want. This program is simple and works well. It tells you the version of firmware currently on your player, and the version of the firmware that it is about to load.

Updating to a new version of the firmware (after you have done the above once) does NOT require you to download the tools again. Instead (according to the manual and the advice I received from NETAC, but both the manual and the advice are probably wrong or out of date) you are supposed to uninstall the NETAC MP3 Firmware Download program (if previously installed) and re-install the tools using the same setup.exe file as described above. The installation process should go off to www.netac.com and get any updated firmware. I have tried this and it does not seem to work - there is no apparent Internet activity, which there should be if it is downloading a firmware file, and I still have the same firmware version that I started with. I have reported this problem but have had no response so far. 

What does appear to happen (and it seems sensible) is that the NETAC MP3 Firmware Download program (as its name suggests) accesses the Internet whenever it runs, presumably to check for a new version of the firmware, and then offers to initialize your firmware as previously described (whether or not it found a new version). If this is the case, then I am in fact running with the latest version of the firmware and still having problems.

Note that there is currently no obvious way of finding out from www.netac.com whether a new update is available; I have been told by NETAC that a new update was made available on 15th January 2007, which I have yet to successfully install (and which may fix at least the big problems reported here). Watch this space!

Needless to say, perhaps, always keep a copy of what’s on your player on some other disk (probably your hard drive). I have had to reload the firmware on the player several times, in fact I am currently doing it routinely (with disk re-formatting) before copying in a new set of files. Tip: I am becoming increasingly convinced that reloading the firmware (using the re-format option) and then re-copying your files from the hard disk is the only safe way to change your play list.

While you are on the NETAC web site download the manual also, a PDF file. As of 24 January 2007 it is just as poor as the printed version, but at least you can magnify it on the screen so that you can read the tiny characters.

RESOLVING OTHER DIFFICULTIES

Shuffle Play mode sometimes starts working like Normal Play mode (I am not sure yet as to exactly what conditions trigger this problem). The shuffled play list effectively has occasional sequences where the numbers aren't shuffled. So far I have had as many as 30 tracks in a row (out of a total of 320) which are in sequential order, but it's usually less than this.  If you just let it play through these tracks, or advance the playing track repeatedly using the arrow keys, this will eventually fix itself, or else you can safely delete the SETTINGS.DAT file on the player (this is one of those hidden operating system files). This will return the player to its default starting condition and settings, you can set up Shuffle Mode and then away you go. (I am still researching this problem, watch this space...).

The description of how to set up the transmitter and adjust its frequency is hopelessly garbled in the manual. There are basically two normal modes called Music and Tran, as well as some other lesser-used modes as described in the manual. In the first mode you are playing music normally, and the “-“ and “+” keys adjust the volume. In the second mode you are transmitting the music on FM, and the “-“ and “+” keys adjust the frequency in small steps between 88 MHz and 90 MHz. You can exit the Tran mode to Music mode by holding down the Mode key for a second or two (which the manual actually does tell you, sort of). You can also exit Music mode to Tran mode in the same way. 

Other modes include Setup mode, which among other things is where you choose Normal (sequential) or Shuffle play. Shuffle also has problems, as noted above.

Note that if the screen saver is displayed, you have to press the button on the front of the player (or any other button) once to exit the screen saver, before doing anything else. This seems obvious, but sometimes isn’t.

You can delete a file when it is playing (if you decide that you don’t like it any more) using the Delete mode. Exiting this mode is not so obvious. The problem is that when you exit from the lowest level menu, the next level menu up doesn’t respond for many seconds. Wait… then you can use the arrow keys (the left arrow is best) to find the exit option at that level.  Note that deleting files may possibly trigger the big "deleted files" problem, see above). 

You recharge the internal battery either through the USB lead or through the car lead that connects into the car's cigar lighter adapter. In the former case, you can’t listen to music at the same time. In the latter case, you can. Do follow the manual’s advice on initial charging / discharging of the battery.

There may be other stuff appearing here later. Bookmark this page and check back if you like! I hope that at least some of this helps.

If you want to contact me (I would appreciate any words of wisdom myself!), you can do so via my home page.

Have fun!

 

Brian Tooby
www.tooby.demon.co.uk/Log/Home.html