The ACT Magistrates Court has been told a woman charged with the theft of up to $2 million in goods is unlikely to be fit to plead to the charges.

Jenny Tian, 49, was arrested in July after the stolen goods were found in her Lyons home, with every roomed packed with items, sometimes floor to ceiling.

The property included CDs, DVDs, computer equipment, books and clothing.

Among the goods were up to 30,000 books calendars and magazines from outlets including the Australian National University's Chifley Library, Borders book store and the ABC Shop.

Tian has been on bail since her lawyers successfully argued that her mental state had deteriorated in custody.

Today the prosecution told the court both sides had accepted Tian would not be fit to plead.

The case has been adjourned for a formal hearing at the end of October.