So I have to create the following procedure block and call it in the “StartRecording” button block?
Yes you need to call it when ever you want to save a recording…Don’t forgot to store the number in tiny db while saving…
Remove the saved recording block…
Also the math var will be increased in the procedure…
You will need to put store value method inside the procedure…
When I try to start the recorder it gives me “ERROR 802: Cannot start recording: null”. Did I make a mistake in inserting any blocks?
It looks that the procedure is right… please Show me your blocks for starting recording
You must call save procedure first then call start…
Now the error it gives me is “The operation not cannot accept the arguments:, [Recording]”
Hmm… my method will check if the name exist. Like if 1.mp3 exist, then 2.mp3. If there is 1,3,4, the next one will be 2.
I know…But if we recorded " Recording2 "…Then tried to record again the name will be also " recording2 "…I think your method must be called when recoding started…So every time the number variable increases and not the first time only… 
The number will increase by 1 in the Loop until no file exist with that number. Wdym by increase the first time
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It looks like the filename variable isn’t a number…Did you set it in any where else to “Recording”…
I mean that this loop must be when you save and not on screen initialization…To avoid duplicate file name…
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ofc, yours also.
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That’s the error…You need to make a new variable which is a boolean or make this variable a boolean if you don’t use in some where else…By setting it’s value on initialize to false…
Yes of course 
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Ehm, now it gives me this error again: “ERROR 802: Cannot start recording: null”
Please show your blocks…