With hörbert 2021 you can use memory cards between 4 and 512 GB.
hörbert 2011:
hörbert works with SDHC-Cards between 4GB and 32GB. To be sure that there is a FAT32 File system on it, you can format your card with our hörbert-Software.
A valuable hint: Less is more! Don’t use ultra-fast Class 10 cards, because they may disturb playback. We offer working memory cards class 4 in our shop.
Please note: Normally, there should be no problems with Class4 or class6 SDHC cards between 4 and 32 GB. However, we are unfortunately unable to make any valid functional statements for third-party cards, as we do not know what is inside those cards that do not originate from us. We obtain our SDHC cards directly from the manufacturer according to our specifications.