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extension sometimes requested when exporting MP3
Posted: Thu Oct 18, 2012 10:26 am
by TheKMan
Gale Andrews wrote:TheKMan wrote:The mp3 I attempted to attach was only 25sec long at 128kbps, but I got a message that "mp3 format uploads are not allowed". ???
The only thing I can think is that there was something "odd" about the file - perhaps you omitted the file extension by mistake, or there was some conflict between the extension and the detected content type.
Gale
Actually you bring up a good point: When I export a project as mp3 it asks me for that extension hit or miss - not every time. I mostly do not have to specify ".mp3" as I have mp3 selected in the Type drop-down.
Re: extension sometimes requested when exporting MP3
Posted: Sun Oct 21, 2012 3:50 am
by Gale Andrews
TheKMan wrote:When I export a project as mp3 it asks me for that extension hit or miss - not every time. I mostly do not have to specify ".mp3" as I have mp3 selected in the Type drop-down.
Please read this Frequently Asked Question for an explanation of this behaviour:
http://manual.audacityteam.org/o/man/fa ... extensions .
Gale
Re: extension sometimes requested when exporting MP3
Posted: Sun Oct 21, 2012 9:45 am
by TheKMan
Gale Andrews wrote:TheKMan wrote:When I export a project as mp3 it asks me for that extension hit or miss - not every time. I mostly do not have to specify ".mp3" as I have mp3 selected in the Type drop-down.
Please read this Frequently Asked Question for an explanation of this behaviour:
http://manual.audacityteam.org/o/man/fa ... extensions .
Gale
I never have a "." in my mp3(or wav) filenames.
I sometimes do have a filename like: "Money For Nothing(Remastered)" or "Money For Nothing - Remastered"
Could either of those trigger a request for extension?
Re: extension sometimes requested when exporting MP3
Posted: Sun Oct 21, 2012 11:14 pm
by steve
Hyphens, underscore, space, upper and lower case letters (a-z A-Z) and numbers (0 to 9) should all be "safe" characters in file names. The rules about other characters can be quite complicated on Windows (see here:
http://msdn.microsoft.com/en-us/library ... 85%29.aspx )
I would generally advise sticking with "safe" characters.
Re: extension sometimes requested when exporting MP3
Posted: Mon Oct 22, 2012 12:24 am
by Gale Andrews
TheKMan wrote:Gale Andrews wrote:TheKMan wrote:When I export a project as mp3 it asks me for that extension hit or miss - not every time. I mostly do not have to specify ".mp3" as I have mp3 selected in the Type drop-down.
Please read this Frequently Asked Question for an explanation of this behaviour:
http://manual.audacityteam.org/o/man/fa ... extensions .
I never have a "." in my mp3(or wav) filenames.
I sometimes do have a filename like: "Money For Nothing(Remastered)" or "Money For Nothing - Remastered"
Could either of those trigger a request for extension?
If you mean, does it trigger a warning "You are about to save an MP3 file with the name..." then the answer should be no. Only a dot triggers that warning.
But as that FAQ says, these characters are illegal in file and folder names on Windows:
so will probably produce some other type of warning.
If the files are just for your own computer and your own use then you can use *any* printable characters other than those nine invalid ones. Windows Media Player will be quite happy playing a file called ▼◊.wav if it is a recent version of WIndows.
If you want to use the exported file on another computer or send it to someone else you should stick to A to Z characters, numbers and underscores ( _ ). Even spaces can be a problem if you want to send the file over the internet.
Large numbers of characters in file paths (the file name and the folder structure the file is in) and "reserved device names" like "COM1" adds to the complication as per Steve's link, but most users won't fall file of those.
Gale
Re: extension sometimes requested when exporting MP3
Posted: Mon Oct 22, 2012 1:44 am
by TheKMan
Ok. So the file type extension warnings I randomly get remain a mystery. Probably a Vista mystery. But thanks for tabling all of the known reasons for the warnings.
Re: extension sometimes requested when exporting MP3
Posted: Mon Oct 22, 2012 3:41 am
by Gale Andrews
TheKMan wrote:Ok. So the file type extension warnings I randomly get remain a mystery. Probably a Vista mystery. But thanks for tabling all of the known reasons for the warnings.
As ever, it's impossible to comment without specifics - exactly what the message says (attaching an image is good) and exactly what steps you take prior to the message appearing.
Gale