Touch Is there a maximum epub file size limit?

Hi,

Is there an epub file-size limit for the Kobo Touch? I bought some Complete Works/Collections off Google Play (Delphi complete) and it's not showing up in the e-reader*. It does show up in the directory listing when I plug it in to the laptop though.

I have tried to search the forums but haven't managed to find anything on this.

Thanks.

*I have tried loading it via Adobe DE, I've tried stripping the DRM and loading it via Calibre. I have even tried stripping it off DRM (Calibre) and then side loading it into the reader. None of the other files are affected so I thought it may be the file size?