Retrospective conversion of catalogues is currently being undertaken b
y increasing numbers of libraries. In the UK, the Follett Implementati
on Group on information Technology (FIGIT) recently commissioned a stu
dy to assess the justification for a national programme in the higher
education sector. An outline of the study and the main recommendations
of the report submitted to FIGIT are given. A Literature survey which
was part of the study has been expanded to a discussion of aspects of
the subject and the information available in the literature. The disc
ussion looks first at the literature in general and notes a lack of ma
terial on the situation in particular countries, including the UK. Loc
al, national and international aspects are considered and the benefits
summarised. The usefulness of quoted costs of completed or in hand pr
ojects is compared with a cost model for estimating costs in advance,
and priorities for the allocation of funds are examined. While only pr
inted materials were considered in the study, the need for retroconver
sion to be extended to non book materials is noted. There are also wid
er implications for record standards and their applications and the ''
ownership'' of records from the extended access to records and collect
ions.