I believe the ALOHA Dataset has not been publicly released.
However, both the paper and the pretrain.md indicate that the ALOHA Dataset was used.
While Mobile ALOHA has been released — and pretrain.md provides detailed instructions on how to download the reconstructed dataset — the ALOHA Dataset collected with a fixed arm, to my knowledge, has not been made available.
Could you clarify how you obtained this dataset for pretraining?