Step 1: Read the question.
Under the Information Technology Act, 2000, we must find what is included in the term electronic record from the four given statements.
Step 2: Recall the definition.
Section 2(1)(t) gives a wide meaning to electronic record. It covers data, record, image, sound and information that is made, sent, received or stored in electronic form.
Step 3: Test Statement I.
Data stored in digital form clearly fits the definition. So Statement I is correct.
Step 4: Test Statement II.
Images or sounds stored or sent electronically are also covered. So Statement II is correct.
Step 5: Test Statements III and IV.
Statement III, about microfilm and computer-generated microfiche, is expressly included, so it is correct. Statement IV, about information only on paper with no electronic processing, is just a physical document, so it is not an electronic record.
Step 6: Final answer.
Statements I, II and III are correct, but IV is not.
\[ \boxed{\text{I, II and III}} \]