problem uploading audio files

I've been building some musical instruments (bagpipes mostly), and this has obviously involved uploading a lot of audio files. They seem to 'bulk upload' ok - they appear in my inventory, and the "play" preview window that loads as each one is uploaded plays them perfectly ("in world" and "locally".)
But when I come to play them later, about half of them are broken (or silent, anyway) - they just don't play, either from my inventory or in an instrument, using the inventory "play" option, or in any music scripts. This has been going on for over a month - from the first day I started uploading sounds.

There's clearly nothing wrong (well, I can't see anything anyway,) with the format I've saved them in - I spend hours weeding out the dead ones, and reupload the exact same clip from my HD, with the exact same name, and then they work again. But it's making hours of extra work, and costing me thousands of extra lindens, and I'm frankly getting a bit ****ed off.

I also have a suspicion that files I've uploaded a second time and got working correctly, have since stopped working (again!) I'm keeping a closer eye on files I've corrected to be sure of this.

Is anyone else getting any similar problems? Any idea how I can get these sounds to work properly the first time? Maybe I should upload them individually instead of using bulk upload, but that would be a great deal of extra work too, given how many there are.

According to CoolEdit the properties of a sample .wav, that was defective the first time (despite uploading and playing correctly both "Play in World" and "Play Locally" in the window that opens at the time of uploading,) but works fine now, are:

Filename: beti_01b.wav
Folder: M:\!Bagpipes\!pibgod
File Type: 44100Hz, 16-bit, Stereo
Uncompressed Size: 1.68 MB (1,764,000 bytes)
File Format: Windows PCM
Windows PCM
Size on Disk: 1.68 MB (1,764,120 bytes)
Last Written (local): 11/8/2007 02:49:34.000
Length: 0:10.000
441,000 samples

###
(an hour or so later)

update to the above - on closer inspection, every single instrument I've made is still suffering from this problem, every single file I've corrected is now broken again. I have clearly been wasting many hours and many dollars for several weeks now attempting to fix it. I can only assume that there is some characteristic of the audio encoding that SL only pretends to like (it seems to comply with the the encoding specified by LL, it accepts the upload and plays a preview after uploading, but then refuses to ever play it again.)

HELP!

They MAY work in the first instance as they are probably held in a asset cache, but maybe rejected when passed to the live servers for storage.

A recent blog by LL stated they discovered and returned over 463,000 items to over 143,000 users. Hard to tell, unless LL make some form of statement.

hey psimagus Hax

Here is what I would try for uploading audio/wav files.

If you are on a windows machine open up sound recorder , load your sound into sound recorder, re-save inside soundrec. and then try and upload.
This is like an official windows program , i never had any issues with it.
Make sure you change sound properties so its saves to 44khz PCM stereo or mono.

If you are on XP/windows based machine this program is located
C:\windows\system32\sndrec32.exe

If this does not work, or you are on another OS.
Try GOLDWAVE program.

Google it, you will find it.

Hope it helps.

Thanks for the advice - I'll try sound recorder and check out Goldwave.
I now think it's a more systemic problem with my connection or audio drivers or something. I've asked a couple of other users with my bagpipes, and they don't seem to be having this problem, and I notice that it's happening with other people's instruments that I have now.
I'm getting a reasonable connection speed (over 2Mbit), so I guess it's time to reinstall the audio drivers and see if that makes any difference.
But at least I'm not inflicting defective bagpipes on customers (phew!)

i don't know if this is an issue with SL. but is it possible, that SL only accepts audiofiles up to a certain size?

that might explain, why the replaced files don't work either.