It doesn't seem possible to convert Nokia audio (*.rel) directly to a Nokia SD card backup (*.arc). However, you could move the audio to the SD card and backup the whole SD card. But perhaps you were looking for the opposite ARC to REL conversion, that should be possible.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
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