For my kids birthday party we made "mixed tapes" with 10 songs on them as a souvenir. We did 75 in total and none had any problems. They were very affordable and perfect for this little project. There are comments about them not containing much, which I assume, but that's because they're only 64MB (according to the product description). You can find reference tables online that tell how many MB/GB projects are in total, which is helpful before choosing the right USB size, as the required file size isn't always intuitive.
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