Could just be that specific card; my PS2 reads official PS1 cards and a number of cheap non-official ones no problem. Perhaps you could format the card in the older machine after copying the data and try it again.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
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Comment envoyer gratuitement des gros fichiers ?